Gaya APA
HOWARD, C, G., DILLAVOU, E, R. (1954).
PRINCIPLES OF BUSINESS LAW (Fifth Edition).
New York:
PRENTICE-HALL.
Gaya MLA
HOWARD, CHARLES, G.., DILLAVOU, Essel, R.
"PRINCIPLES OF BUSINESS LAW".
Fifth Edition
New York:
PRENTICE-HALL,
1954.
Textbook.