APA (7th ed.) Citation

Swan. (2017). Sampling and Recruitment Strategies for Conducting Qualitative Interviews With Vulnerable Populations. Sage Publications Ltd.

Chicago Style (17th ed.) Citation

Swan. Sampling and Recruitment Strategies for Conducting Qualitative Interviews With Vulnerable Populations. [Place of publication not identified]: Sage Publications Ltd, 2017.

MLA (9th ed.) Citation

Swan. Sampling and Recruitment Strategies for Conducting Qualitative Interviews With Vulnerable Populations. Sage Publications Ltd, 2017.