Cita APA (7a ed.)
Kupchella, C. E., & Hyland, M. C. (1993). Environmental Science: Living Within the System of Nature (3. vyd.). Prentice Hall International.
Cita Chicago Style (17a ed.)
Kupchella, Charles E., y Margaret C. Hyland. Environmental Science: Living Within the System of Nature. 3. vyd. London: Prentice Hall International, 1993.
Cita MLA (9a ed.)
Kupchella, Charles E., y Margaret C. Hyland. Environmental Science: Living Within the System of Nature. 3. vyd. Prentice Hall International, 1993.
Precaución: Estas citas no son 100% exactas.