Hill Robert L, van Uffelen Jannique GZ, Heesch Kristiann C, & Brown Wendy J. (2010). What do IPAQ questions mean to older adults? Lessons from cognitive interviews. BMC.
Chicago Style (17th ed.) CitationHill Robert L, van Uffelen Jannique GZ, Heesch Kristiann C, and Brown Wendy J. What Do IPAQ Questions Mean to Older Adults? Lessons from Cognitive Interviews. BMC, 2010.
MLA (9th ed.) CitationHill Robert L, et al. What Do IPAQ Questions Mean to Older Adults? Lessons from Cognitive Interviews. BMC, 2010.
Warning: These citations may not always be 100% accurate.