Penggayaan APA

GILL, RICHARD T. (1978). Economics . California: Gnodyear Publishing Company Inc.

Chicago Style

GILL, RICHARD T. Economics. California: Gnodyear Publishing Company Inc, 1978. Text.

MLA Style

GILL, RICHARD T. Economics. California: Gnodyear Publishing Company Inc, 1978. Text.

Turabian Style

GILL, RICHARD T. Economics. California: Gnodyear Publishing Company Inc, 1978. Print.