APA (7 ম সংস্করণ) উদ্ধৃতি

Zeylstra, W. G. (1975). Aid or development: The relevance of development aid to problems of developing countries. A.W. Sijthoff.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Zeylstra, Willem Gustaaf. Aid or Development: The Relevance of Development Aid to Problems of Developing Countries. Leyden: A.W. Sijthoff, 1975.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Zeylstra, Willem Gustaaf. Aid or Development: The Relevance of Development Aid to Problems of Developing Countries. A.W. Sijthoff, 1975.