Παραπομπή APA

R Umarani. (2004). An introduction to tree seed technology. International book distributors.

Παραπομπή Chicago Style

R Umarani. An Introduction to Tree Seed Technology. Dehra Dun: International book distributors, 2004.

Παραπομπή MLA

R Umarani. An Introduction to Tree Seed Technology. International book distributors, 2004.