APA (7th ed.) Citation

Pitkin, R. M., Scott, J. R., Phelan, J. P., Grimes, D. A., & García Roig, F. Embarazo prolongado; Anticoncepción.

Chicago Style (17th ed.) Citation

Pitkin, Roy M., James R. Scott, Jeffrey P. Phelan, David A. Grimes, and Félix García Roig. Embarazo Prolongado; Anticoncepción.

MLA (8th ed.) Citation

Pitkin, Roy M., et al. Embarazo Prolongado; Anticoncepción.

Warning: These citations may not always be 100% accurate.