Citação norma APA

Romijn, C., & Roos, J. (1938). The air space of the hen's egg and its changes during the period of incubation.

Citação norma Chicago

Romijn, C., and J. Roos. The Air Space of the Hen's Egg and Its Changes During the Period of Incubation. 1938.

Citação norma MLA

Romijn, C., and J. Roos. The Air Space of the Hen's Egg and Its Changes During the Period of Incubation. 1938.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.