APA Edition Citation

Street, H. E., & Opik, H. The physiology of flowering plants: Their growth and development.

Chicago Edition Citation

Street, H. E., and Helgi Opik. The Physiology of Flowering Plants: Their Growth and Development.

MLA Edition Citation

Street, H. E., and Helgi Opik. The Physiology of Flowering Plants: Their Growth and Development.

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