APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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