APA (7e ed.) Bronvermelding

Tungpalan, L. M. B. (1997). Promises to keep: Return to nursing. Soller Press.

Chicago (17e ed.) Bronvermelding

Tungpalan, Luz M. Buenavista. Promises to Keep: Return to Nursing. Quezon City: Soller Press, 1997.

MLA (9e ed.) Bronvermelding

Tungpalan, Luz M. Buenavista. Promises to Keep: Return to Nursing. Soller Press, 1997.