APA (7th ed.) Zitazioa

Schmid, T., & Testa, C. (1969). Systems building: An international survey of methods. Frederick A. Praeger.

Chicago Style (17th ed.) Zitazioa

Schmid, Thomas, eta Carlo Testa. Systems Building: An International Survey of Methods. Nueva York: Frederick A. Praeger, 1969.

MLA (9th ed.) Zitazioa

Schmid, Thomas, eta Carlo Testa. Systems Building: An International Survey of Methods. Frederick A. Praeger, 1969.