APA-ийн эшлэл(7 дахь хэвлэлт)

Barr, A., Lindelow, M., Garcia-Montalvo, J., & Serneels, P. (2005). Intrinsic motivations on the development frontline: Do they exist? Do they endure? GPRG.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Barr, A., M. Lindelow, J. Garcia-Montalvo, ба P. Serneels. Intrinsic Motivations on the Development Frontline: Do They Exist? Do They Endure? GPRG, 2005.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Barr, A., et al. Intrinsic Motivations on the Development Frontline: Do They Exist? Do They Endure? GPRG, 2005.