APA
Volkert R. A., Drake A. A., . (1999). Geochemistry and Stratigraphic Relations of Middle Proterozoic Rocks of the New Jersey Highlands. Washington: United States Government Printing office.
Chicago
Volkert R A, Drake A A, . 1999. Geochemistry and Stratigraphic Relations of Middle Proterozoic Rocks of the New Jersey Highlands. Washington: United States Government Printing office.
Harvard
Volkert R. A., Drake A. A., . (1999). Geochemistry and Stratigraphic Relations of Middle Proterozoic Rocks of the New Jersey Highlands. Washington: United States Government Printing office.
MLA
Volkert R A, Drake A A, . Geochemistry and Stratigraphic Relations of Middle Proterozoic Rocks of the New Jersey Highlands. Washington: United States Government Printing office. 1999.