Gaya APA

Pankratz, L., Gokcen, N. (1984). Thermodynamic Data For Mineral Technology (Bulletin 677) . : United States Department of the Interior.

Gaya MLA

Pankratz, L.B., Gokcen, N.A. "Thermodynamic Data For Mineral Technology (Bulletin 677)". : United States Department of the Interior, 1984. Text.