Παραπομπή APA

GUPTA RAJKUMAR. (1979). PLANTS FOR ENVIRONMENTAL CONSERVATION. BISHEN SINGH MAHENDRA PAL SINGH.

Παραπομπή Chicago Style

GUPTA RAJKUMAR. PLANTS FOR ENVIRONMENTAL CONSERVATION. INDIA: BISHEN SINGH MAHENDRA PAL SINGH, 1979.

Παραπομπή MLA

GUPTA RAJKUMAR. PLANTS FOR ENVIRONMENTAL CONSERVATION. BISHEN SINGH MAHENDRA PAL SINGH, 1979.