VASHIST HIMANSHU. (2002). ENVIRONMENTAL EDUCATION: PROBLEMS AND SOLUTIONS. JAIPUR.
Chicago Style aipamenaVASHIST HIMANSHU. ENVIRONMENTAL EDUCATION: PROBLEMS AND SOLUTIONS. BOOK ENCLAVE: JAIPUR, 2002.
MLA aipamenaVASHIST HIMANSHU. ENVIRONMENTAL EDUCATION: PROBLEMS AND SOLUTIONS. JAIPUR, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.