SWARUP R. (1992). ENVIRONMENTAL HEALTH, EDUCATION & PUBLIC UNDERSTANDING. MITTAL PUBLICATIONS.
Chicago (17e ed.) BronvermeldingSWARUP R. ENVIRONMENTAL HEALTH, EDUCATION & PUBLIC UNDERSTANDING. NEW DELHI: MITTAL PUBLICATIONS, 1992.
MLA (9e ed.) BronvermeldingSWARUP R. ENVIRONMENTAL HEALTH, EDUCATION & PUBLIC UNDERSTANDING. MITTAL PUBLICATIONS, 1992.
Let op: Deze citaties zijn niet altijd 100% accuraat.