Styl cytowania APA

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

Styl cytowania Chicago

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

Styl cytowania MLA

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