Dyfyniad APA

Pettigrew, S., Jongenelis, M., Newton, R. U., Warburton, J., & Jackson, B. (2015). Research protocol for a randomized controlled trial of the health effects of volunteering for seniors. Health Qual Life Outcomes.

Dyfyniad Arddull Chicago

Pettigrew, Simone, Michelle Jongenelis, Robert U. Newton, Jeni Warburton, and Ben Jackson. "Research Protocol for a Randomized Controlled Trial of the Health Effects of Volunteering for Seniors." Health Qual Life Outcomes 2015.

Dyfyniad MLA

Pettigrew, Simone, et al. "Research Protocol for a Randomized Controlled Trial of the Health Effects of Volunteering for Seniors." Health Qual Life Outcomes 2015.

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