Παραπομπή APA

Fritsch, F. E. (1979). The structure and reproduction of the algae.

Παραπομπή Chicago Style

Fritsch, F E. The Structure and Reproduction of the Algae. New Delhi, Vikas Publishing House, 1979.

Παραπομπή MLA

Fritsch, F E. The Structure and Reproduction of the Algae. 1979.