Cita APA (7a ed.)

Spicer, J. I., & Gaston, K. J. (1999). Physiological diversity and its ecological implications. Blackwell Science.

Cita Chicago Style (17a ed.)

Spicer, John I., y Kevin J. Gaston. Physiological Diversity and Its Ecological Implications. Oxford, U.K.: Blackwell Science, 1999.

Cita MLA (8a ed.)

Spicer, John I., y Kevin J. Gaston. Physiological Diversity and Its Ecological Implications. Blackwell Science, 1999.