APA (7th ed.) Citation

Öpik, H. (1980). The respiration of higher plants. Arnold.

Chicago Style (17th ed.) Citation

Öpik, Helgi. The Respiration of Higher Plants. London: Arnold, 1980.

MLA (9th ed.) Citation

Öpik, Helgi. The Respiration of Higher Plants. Arnold, 1980.

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