APA (7. basım) Alıntı

Willis, A. J., & Willis, C. J. (1968). Specification writing for architects and surveyors (5th ed.). Lockwood.

Chicago Style (17. basım) Atıf

Willis, Arthur James, ve Christopher James Willis. Specification Writing for Architects and Surveyors. 5th ed. London: Lockwood, 1968.

MLA (9th ed.) Atıf

Willis, Arthur James, ve Christopher James Willis. Specification Writing for Architects and Surveyors. 5th ed. Lockwood, 1968.