Gaya APA

Coffeen, J. (1984). Interpreting Seismic Data Workbook ; a Geophysical Coloring Book . Tulsa: PennWell Books.

Gaya MLA

Coffeen, J.A.. "Interpreting Seismic Data Workbook ; a Geophysical Coloring Book". Tulsa: PennWell Books, 1984. Text.