COUNCIL OF BETTER BUSINESS. (1985). HOW TO PROTECT YOUR BUSINESS. BENJAMIN IN ASSOCIATION WITH PRENTICE -HALL, INC.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)COUNCIL OF BETTER BUSINESS. HOW TO PROTECT YOUR BUSINESS. NEW YORK: BENJAMIN IN ASSOCIATION WITH PRENTICE -HALL, INC, 1985.
MLA -ийн эшлэл (9 дэх хэвлэлт)COUNCIL OF BETTER BUSINESS. HOW TO PROTECT YOUR BUSINESS. BENJAMIN IN ASSOCIATION WITH PRENTICE -HALL, INC, 1985.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.