Citação norma APA

Muirhead, G. J., Rance, D. J., Walker, D. K., & Wastall, P. (2002). Comparative human pharmacokinetics and metabolism of single-dose oral and intravenous sildenafil citrate. Blackwell Science Inc.

Citação norma Chicago

Muirhead, Gary J., David J. Rance, Donald K. Walker, and Philip Wastall. Comparative Human Pharmacokinetics and Metabolism of Single-dose Oral and Intravenous Sildenafil Citrate. Blackwell Science Inc, 2002.

Citação norma MLA

Muirhead, Gary J., David J. Rance, Donald K. Walker, and Philip Wastall. Comparative Human Pharmacokinetics and Metabolism of Single-dose Oral and Intravenous Sildenafil Citrate. Blackwell Science Inc, 2002.

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