APA (7th ed.) Zitazioa
Muthoka, M. G., Rego, A. B., & RImbui, Z. K. (1998). Environmental education: Essential knoweledge for sustainable development. Longhorn.
Chicago Style (17th ed.) Zitazioa
Muthoka, Margaret G., Assumpta B. Rego, eta Zipporah K. RImbui. Environmental Education: Essential Knoweledge for Sustainable Development. Nairobi: Longhorn, 1998.
MLA (9th ed.) Zitazioa
Muthoka, Margaret G., et al. Environmental Education: Essential Knoweledge for Sustainable Development. Longhorn, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.