APA (7th ed.) Citation

(1967). Directories of science information sources: International bibliography = Repertoires de sources d'information scientifique et technique (2. ed.). International Federation for Documentation.

Chicago Style (17th ed.) Citation

Directories of Science Information Sources: International Bibliography = Repertoires De Sources D'information Scientifique Et Technique. 2. ed. The Hague: International Federation for Documentation, 1967.

MLA (9th ed.) Citation

Directories of Science Information Sources: International Bibliography = Repertoires De Sources D'information Scientifique Et Technique. 2. ed. International Federation for Documentation, 1967.