Cita APA (7a ed.)

Lieth, H., & Schwartz, M. D. (1997). Phenology in seasonal climates I. Backhuys.

Cita Chicago Style (17a ed.)

Lieth, Helmut, y M. D. Schwartz. Phenology in Seasonal Climates I. Leiden: Backhuys, 1997.

Cita MLA (8a ed.)

Lieth, Helmut, y M. D. Schwartz. Phenology in Seasonal Climates I. Backhuys, 1997.