Παραπομπή APA

SS Narwal. (2004). Alleopathy in crop production. Scientific publishers.

Παραπομπή Chicago Style

SS Narwal. Alleopathy in Crop Production. Jodhpur: Scientific publishers, 2004.

Παραπομπή MLA

SS Narwal. Alleopathy in Crop Production. Scientific publishers, 2004.