Trích dẫn APA

Laszlo, E. (1972). The Relevance of General Systems Theory: Papers Presented to Ludwig von Bertalanffy an His Seventieth Birthday. New York: George Braziller.

Trích dẫn kiểu Chicago

Laszlo, Ervin. The Relevance of General Systems Theory: Papers Presented to Ludwig Von Bertalanffy an His Seventieth Birthday. New York: George Braziller, 1972.

Trích dẫn MLA

Laszlo, Ervin. The Relevance of General Systems Theory: Papers Presented to Ludwig Von Bertalanffy an His Seventieth Birthday. New York: George Braziller, 1972.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.