Cytowanie według stylu APA (wyd. 7)

International Labor Office. (1957). International standard classification of occupations: Codes and titles of major, minor and unit groups together with draft definitions and alphabetic index. [s.n.].

Cytowanie według stylu Chicago (wyd. 17)

International Labor Office. International Standard Classification of Occupations: Codes and Titles of Major, Minor and Unit Groups Together with Draft Definitions and Alphabetic Index. Geneva: [s.n.], 1957.

Cytowanie według stylu MLA (wyd. 9)

International Labor Office. International Standard Classification of Occupations: Codes and Titles of Major, Minor and Unit Groups Together with Draft Definitions and Alphabetic Index. [s.n.], 1957.