Gaya APA

CHARLES F. PARK, JR.. (). EARTH RESOUECES . : .

Gaya Chicago

CHARLES F. PARK, JR.. EARTH RESOUECES. : , . .

Gaya MLA

CHARLES F. PARK, JR.. EARTH RESOUECES. : , . .

Gaya Turabian

CHARLES F. PARK, JR.. EARTH RESOUECES. : , . .