APA Citation

Schwassmann, H. O. (1980). Biological rhythms: Their adaptive significance.

Chicago Style Citation

Schwassmann, Horst O. Biological Rhythms: Their Adaptive Significance. 1980.

MLA Citation

Schwassmann, Horst O. Biological Rhythms: Their Adaptive Significance. 1980.

Warning: These citations may not always be 100% accurate.