APA način citiranja (7. izdanje)

Vangnai, S. (1977). Microbial transformation of sulfur in soil [microform]. Photoduplication Service. University of the Philippines Library.

Čikaški stil citiranja (17. izdanje)

Vangnai, Somsak. Microbial Transformation of Sulfur in Soil [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

MLA način citiranja (9. izdanje)

Vangnai, Somsak. Microbial Transformation of Sulfur in Soil [microform]. Photoduplication Service. University of the Philippines Library, 1977.