Gaya APA
GRIKSCHEIT, C, M. (1981).
HANDBOOK OF SELLING PSYCOLOGICAL, MANAGERIAL, AND MARKETING BASES .
Amerika:
A RONALD PRESS PUBLISHING.
Gaya MLA
GRIKSCHEIT, CARY, M..
"HANDBOOK OF SELLING PSYCOLOGICAL, MANAGERIAL, AND MARKETING BASES".
Amerika:
A RONALD PRESS PUBLISHING,
1981.
Text.