Cita APA

Schwartz, R. W., Donnelly, M. B., Young, B., Nash, P. P., Witte, F. M., & Griffen, W. O. (1992). Undergraduate surgical education for the twenty-first century.

Chicago Style Citation

Schwartz, R W., M B. Donnelly, B. Young, P P. Nash, F M. Witte, i W O. Griffen. Undergraduate Surgical Education for the Twenty-first Century. 1992.

Cita MLA

Schwartz, R W., et al. Undergraduate Surgical Education for the Twenty-first Century. 1992.