Παραπομπή APA

Mayr, E. (1969). Principles of systematic Zoology. Tata Mc Graw Hill.

Παραπομπή Chicago Style

Mayr, Ernst. Principles of Systematic Zoology. Bombay: Tata Mc Graw Hill, 1969.

Παραπομπή MLA

Mayr, Ernst. Principles of Systematic Zoology. Tata Mc Graw Hill, 1969.