APA ציטוט

Petersson, K., Persson, M., Lindkvist, M., Hammarström, M., Nilses, C., Haglund, I., . . . Mogren, I. (2014). Internal validity of the Swedish Maternal Health Care Register. BioMed Central.

Citação norma Chicago

Petersson, Kerstin, Margareta Persson, Marie Lindkvist, Margareta Hammarström, Carin Nilses, Ingrid Haglund, Yvonne Skogsdal, and Ingrid Mogren. Internal Validity of the Swedish Maternal Health Care Register. BioMed Central, 2014.

ציטוט MLA

Petersson, Kerstin, et al. Internal Validity of the Swedish Maternal Health Care Register. BioMed Central, 2014.