Edwards, H. G. (1961). Specifications (2d ed.). Van Nostrand.
Chicago Style aipamenaEdwards, H. Griffith. Specifications. 2d ed. Princeton, N. J.: Van Nostrand, 1961.
MLA aipamenaEdwards, H. Griffith. Specifications. 2d ed. Van Nostrand, 1961.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.