APA引文

Åhas, R. (1999). Spatial and temporal variability of phenological phases in Estonia. Tartu University Press.

Chicago Style (17th ed.) Citation

Åhas, Rein. Spatial and Temporal Variability of Phenological Phases in Estonia. Tartu: Tartu University Press, 1999.

MLA引文

Åhas, Rein. Spatial and Temporal Variability of Phenological Phases in Estonia. Tartu University Press, 1999.

警告：這些引文格式不一定是100％准確.