APA (7e ed.) Bronvermelding

SINGH P P. (2004). ENVIRONMENT AND POLLUTION EDUCATION. DEEP & DEEP PUBLICATIONS.

Chicago (17e ed.) Bronvermelding

SINGH P P. ENVIRONMENT AND POLLUTION EDUCATION. NEW DELHI: DEEP & DEEP PUBLICATIONS, 2004.

MLA (9e ed.) Bronvermelding

SINGH P P. ENVIRONMENT AND POLLUTION EDUCATION. DEEP & DEEP PUBLICATIONS, 2004.

Let op: Deze citaties zijn niet altijd 100% accuraat.