APA-Zitierstil (7. Ausg.)

Boerboom, T. J. (1989). Tourmaline in early Proterozoic metasedimentary rocks near Philbrook, Northeastern Todd County, Central Minnesota.

Chicago-Zitierstil (17. Ausg.)

Boerboom, Terrence J. Tourmaline in Early Proterozoic Metasedimentary Rocks Near Philbrook, Northeastern Todd County, Central Minnesota. Saint Paul, 1989.

MLA-Zitierstil (9. Ausg.)

Boerboom, Terrence J. Tourmaline in Early Proterozoic Metasedimentary Rocks Near Philbrook, Northeastern Todd County, Central Minnesota. 1989.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.