APA Citatie

Keshav Singh & Yogendra Kumar. (2014). Earthworm diversity and ecology. Gene-Tech Books.

Chicago Style citaat

Keshav Singh en Yogendra Kumar. Earthworm Diversity and Ecology. New Delhi: Gene-Tech Books, 2014.

MLA citatie

Keshav Singh en Yogendra Kumar. Earthworm Diversity and Ecology. Gene-Tech Books, 2014.