APA Style

Sommer, A. (1974). Assessmentof xerophthalmia and the mass vitamin a prophylaxis program in E1 savador . New York: AFDB, Badan Litbangkes.

MLA Style

Sommer, Alfred. "Assessmentof xerophthalmia and the mass vitamin a prophylaxis program in E1 savador". New York: AFDB, Badan Litbangkes, 1974. print.