Christiansen, F. B., & Fenchel, T. M. (1977). Measuring selection in natural populations. Springer-Verlag.
Cita Chicago (17th ed.)Christiansen, F. B., i T. M. Fenchel. Measuring Selection in Natural Populations. Berlín: Springer-Verlag, 1977.
Cita MLA (9th ed.)Christiansen, F. B., i T. M. Fenchel. Measuring Selection in Natural Populations. Springer-Verlag, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.