Gaya APA

penulis, T. (1975). Progress report for september and October 1975 (laporan penelitian) . Jakarta: Puslitbang Ekologi Kesehatan, Badan Litbangkes.

Gaya MLA

penulis, Tanpa. "Progress report for september and October 1975 (laporan penelitian)". Jakarta: Puslitbang Ekologi Kesehatan, Badan Litbangkes, 1975. print.