Citazione APA

SING, D. K., & SINGH, N. (2006). VEGETABLE SEED PRODUCTION TECHNOLOGY.

Stile di citazione Chicago

SING, D K., e NEMPAL SINGH. VEGETABLE SEED PRODUCTION TECHNOLOGY. LUCKNOW, INTERNATIONAL BOOK DISTRIBUTING CO, 2006.

Citazione MLA

SING, D K., e NEMPAL SINGH. VEGETABLE SEED PRODUCTION TECHNOLOGY. 2006.