APA (7th ed.) Citation

Hendry, G. D., Ryan, G., & Harris, J. (2003). Group problems in problem-based learning. Medical Teacher, 25(6), 609. https://doi.org/10.1080/0142159031000137427

Chicago Style (17th ed.) Citation

Hendry, Graham D., Greg Ryan, and Jennifer Harris. "Group Problems in Problem-based Learning." Medical Teacher 25, no. 6 (2003): 609. https://doi.org/10.1080/0142159031000137427.

MLA (9th ed.) Citation

Hendry, Graham D., et al. "Group Problems in Problem-based Learning." Medical Teacher, vol. 25, no. 6, 2003, p. 609, https://doi.org/10.1080/0142159031000137427.