APA ציטוט

Melbye, M., Wohlfahrt, J., Westergaard, T., Jensen, A. K., Koch, A., Hjalgrim, H., . . . Aaby, P. (1997). Births at Christmas are different: Population based survey of 2 million deliveries. Christmas Paper Study Group.

Citação norma Chicago

Melbye, M., J. Wohlfahrt, T. Westergaard, A. K. Jensen, A. Koch, H. Hjalgrim, A. Kristensen, and P. Aaby. Births At Christmas Are Different: Population Based Survey of 2 Million Deliveries. Christmas Paper Study Group. 1997.

ציטוט MLA

Melbye, M., et al. Births At Christmas Are Different: Population Based Survey of 2 Million Deliveries. Christmas Paper Study Group. 1997.