APA استشهاد

R S Shukla & Chandel P S. (1993). Plant ecology and soil science. S Chand.

استشهاد بنمط شيكاغو

R S Shukla و Chandel P S. Plant Ecology and Soil Science. New Delhi: S Chand, 1993.

MLA استشهاد

R S Shukla و Chandel P S. Plant Ecology and Soil Science. S Chand, 1993.