एपीए उद्धरण

Crema, A., Frigo, G. M., Lecchini, S., Manzo, L., Onori, L., & Tonini, M. (1983). Purine receptors in the guinea-pig internal anal sphincter. Nature Publishing Group.

शिकागो स्टाइल उद्धरण

Crema, A., G. M. Frigo, S. Lecchini, L. Manzo, L. Onori, और M. Tonini. Purine Receptors in the Guinea-pig Internal Anal Sphincter. Nature Publishing Group, 1983.

एमएलए उद्धरण

Crema, A., et al. Purine Receptors in the Guinea-pig Internal Anal Sphincter. Nature Publishing Group, 1983.