APA (7th ed.) Zitazioa

Howard, D. M. (1970). Student power in world evangelism. Inter-varsity.

Chicago Style (17th ed.) Zitazioa

Howard, David M. Student Power in World Evangelism. Downers Grove: Inter-varsity, 1970.

MLA (9th ed.) Zitazioa

Howard, David M. Student Power in World Evangelism. Inter-varsity, 1970.