Citazione APA

Malty, A. (1944). Sayer's manual of classification for librarians (5th ed.). Gralton book.

Stile di citazione Chicago

Malty, Arthur. Sayer's Manual of Classification for Librarians. 5th ed. London: Gralton book, 1944.

Citazione MLA

Malty, Arthur. Sayer's Manual of Classification for Librarians. 5th ed. Gralton book, 1944.