DePoy, E. (1998). Introduction to research: Multiple strategies for health and human services. Mosby.
Cita Chicago (17th ed.)DePoy, Elizabeth. Introduction to Research: Multiple Strategies for Health and Human Services. St. Louis: Mosby, 1998.
Cita MLA (9th ed.)DePoy, Elizabeth. Introduction to Research: Multiple Strategies for Health and Human Services. Mosby, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.