APA (7th ed.) Citation

National Council of Social Service. (1966). Social welfare directories, and how to prepare them.

Chicago Style (17th ed.) Citation

National Council of Social Service. Social Welfare Directories, and How to Prepare Them. London, 1966.

MLA (9th ed.) Citation

National Council of Social Service. Social Welfare Directories, and How to Prepare Them. 1966.

Warning: These citations may not always be 100% accurate.