Quarrick, Eugene A., and Robert E. Rankin. (1965) 1965. “Intrinsic Motivation in 4-H”. Journal of Extension 3 (1): 42-50. https://archives.joe.org/joe/1965spring/1965-1-a6.pdf.
Robert E. Rankin
Fixed Name
Robert E. Rankin
First name
Robert E.
Last name
Rankin