Gaya APA

Paulssen, L, M. (1964). Identification Of Active Charcoals And Wood Chacoals . Norwegia: UniversitETSFORLAGET.

Gaya MLA

Paulssen, Leif, M. "Identification Of Active Charcoals And Wood Chacoals". Norwegia: UniversitETSFORLAGET, 1964. Text.