APA (7th ed.) Citation

Heelis, D. V. (1977). Phototactic pigments of euglena gracilis.

Chicago Style (17th ed.) Citation

Heelis, Diana Valerie. Phototactic Pigments of Euglena Gracilis. 1977.

MLA (8th ed.) Citation

Heelis, Diana Valerie. Phototactic Pigments of Euglena Gracilis. 1977.

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