APA Citation

Langston, R., & Leopold, A. C. (1954). The Dark Fixation of Carbon Dioxide as a Factor in Photoperiodism.

Chicago Style Citation

Langston, Ruble, and A. C. Leopold. The Dark Fixation of Carbon Dioxide As a Factor in Photoperiodism. 1954.

MLA Citation

Langston, Ruble, and A. C. Leopold. The Dark Fixation of Carbon Dioxide As a Factor in Photoperiodism. 1954.

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