APA (7th ed.) Citation

Metropolitan Research Company, Los Angeles. (1958). Association index: A source-list of directories and other publications listing associations. [publisher not identified].

Chicago Style (17th ed.) Citation

Metropolitan Research Company, Los Angeles. Association Index: A Source-list of Directories and Other Publications Listing Associations. Los Angeles: [publisher not identified], 1958.

MLA (9th ed.) Citation

Metropolitan Research Company, Los Angeles. Association Index: A Source-list of Directories and Other Publications Listing Associations. [publisher not identified], 1958.