Gaya APA

Bent, A, J, V, D. (1981). Voices of unity: essays in honour of Willem Adolf Visser T Hooft on the occasion of his 80th birthday . Geneva: WCC.

Gaya MLA

Bent, Ans, J., Van, Der. "Voices of unity: essays in honour of Willem Adolf Visser T Hooft on the occasion of his 80th birthday". Geneva: WCC, 1981. Text.