An Essay on the Principle of Population by Thomas Malthus

The Struggle for Existence by Georgyi Frantsevitch Gause

Analytical Theory of Biological Populations by Alfred J. Lotka

Forthcoming books
1: THE BIOLOGY OF ELEMENTS FROM MOLECULES TO THE BIOSPHERE
BY ROBERT W. STERNER AND JAMES J. ELSER
2: Complex Population Dynamics: A Theoretical/Empirical
Synthesis   by Peter Turchin
3: Embracing Nature  by Michael L. Rosenzweig

Textbooks in Mathematical Biology

Brown, D. and Rothery, P. (1994) Models in Biology: Mathematics, Statistics, & Computing. Wiley,
                Chichester.
Freedman, H.I. (197??) Deterministic mathematical models in population ecology, 254 pp., ???
Gurney, W.S.C. & Nisbet, R.M. (1998) Ecological dynamics 335pp. Oxford University Press
Haefner, J. W. (1996) Modeling Biological Systems: Principles and Applications. Chapman and Hall, NY.
Hallam, T. G. and S. A. Levin (eds.). (1986). Mathematical Ecology: an Introduction. Springer-Verlag.
Levin, S. A., Hallam, T. G. and L. J. Gross (eds.). (1989) Applied Mathematical Ecology. Springer-Verlag.
Marcus-Roberts, H. and and M. Thompson (eds.). (1983) Life science Models. Springer-Verlag.
May, R.M. (1975) Stability and complexity in model ecosystems, 235 pp., Princeton U.P.
May, R.M. (ed) (1981) Theoretical ecology (2nd ed), 489 pp., Blackwell Scientific Publications
Maynard Smith, J. (1974) Models in ecology, 146 pp., Cambridge U.P.
Maynard Smith, John. (1982) Evolution and the Theory of Games. Cambridge Univ. Press.
Murray, J.D. (1993) Mathematical biology (2nd ed) 767 pp., Springer Verlag
Nisbet, R.M. & Gurney, W.S.C. (1982) Modelling fluctuating populations, ??? pp., John Wiley & Sons
Pielou, E.C. (1969) An introduction to mathematical ecology, 286 pp., Wiley-Interscience.
Renshaw, E. (1991) Modelling Biological Populations in Space and Time. Cambridge University Press.
Rose, Michael R. (1987) Quantitative Ecological Theory: An Introduction to Basic Models. John
                Hopkins Univ. Press.
Roughgarden, J. (1979) Theory of Population Genetics and Evolutionary Ecology: an Introduction.
                Macmillan
Royama, T. (1992) Analytical population dynamics, 371 pp, Chapman & Hall.
Segel, Lee A. (1984) Modeling Dynamic Phenomena in Molecular and Cellular Biology. Cambridge Univ.  Press.
Sigmund, K. (1993) Games of life, 244 pp., Oxford U.P.
Thompson, D'A. (1961) On growth and form (Canto 1990 Edition), 346 pp. Cambridge U.P.
Weibull, J.W. (1995) Evolutionary game theory, 265 pp., The MIT Press
Yodzis, P. (1983?) Introduction to theoretical ecology, 384 pp, ???