Perry, G. A., Jones, E., & Hammersley, A. (1972). Approaches to environmental studies. Teachers' guide / (by) G.A. Perry, E. Jones, A. Hammersley ; edited by Gordon A. Perry. Blandford Press.
Chicago Style (17th ed.) CitationPerry, Gordon A., Eric Jones, and Alan Hammersley. Approaches to Environmental Studies. Teachers' Guide / (by) G.A. Perry, E. Jones, A. Hammersley ; Edited by Gordon A. Perry. London: Blandford Press, 1972.
MLA (9th ed.) CitationPerry, Gordon A., et al. Approaches to Environmental Studies. Teachers' Guide / (by) G.A. Perry, E. Jones, A. Hammersley ; Edited by Gordon A. Perry. Blandford Press, 1972.
Warning: These citations may not always be 100% accurate.