(1969). Reference Tools and Services: Introduction to the Use of Commercial, Organization and Biographical Directories.
Chicago Style (17th ed.) CitationReference Tools and Services: Introduction to the Use of Commercial, Organization and Biographical Directories. 1969.
MLA (9th ed.) CitationReference Tools and Services: Introduction to the Use of Commercial, Organization and Biographical Directories. 1969.
Warning: These citations may not always be 100% accurate.