Παραπομπή APA

Opik, H., & Street, H. E. (1986). The physiology of flowering plants: Their growth and development (Ed.3.).

Παραπομπή Chicago Style

Opik, Helgi, και H E. Street. The Physiology of Flowering Plants: Their Growth and Development. Ed.3. London, Edward Arnold, 1986.

Παραπομπή MLA

Opik, Helgi, και H E. Street. The Physiology of Flowering Plants: Their Growth and Development. Ed.3. 1986.