APA (7 ম সংস্করণ) উদ্ধৃতি

Spevacek, V. (1966). Some Problems of Constructing The Long-Term Projection in Czechoslovakia. The institute of national planning.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Spevacek, Vojtech. Some Problems of Constructing The Long-Term Projection in Czechoslovakia. Cairo: The institute of national planning, 1966.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Spevacek, Vojtech. Some Problems of Constructing The Long-Term Projection in Czechoslovakia. The institute of national planning, 1966.