Παραπομπή APA

Rashid, A. (1976). An iIntroduction to pteridophyta: Diversity and differentiation. Vikas.

Παραπομπή Chicago Style

Rashid, A. An IIntroduction to Pteridophyta: Diversity and Differentiation. New Delhi: Vikas, 1976.

Παραπομπή MLA

Rashid, A. An IIntroduction to Pteridophyta: Diversity and Differentiation. Vikas, 1976.