JOHNSON KERRY L. (1994). SALES MAGIC. REVOLUTIONARY NEW TECHNIQUES THAT WILL DOUBLE YOUR SALES VOLUMES IN 21 DAYS. WILLIAM MORROW.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)JOHNSON KERRY L. SALES MAGIC. REVOLUTIONARY NEW TECHNIQUES THAT WILL DOUBLE YOUR SALES VOLUMES IN 21 DAYS. NEW YORK: WILLIAM MORROW, 1994.
MLA -ийн эшлэл (9 дэх хэвлэлт)JOHNSON KERRY L. SALES MAGIC. REVOLUTIONARY NEW TECHNIQUES THAT WILL DOUBLE YOUR SALES VOLUMES IN 21 DAYS. WILLIAM MORROW, 1994.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.