APA-ийн эшлэл(7 дахь хэвлэлт)
Hardy, L. (1971). Marketing for profit: A study in the formulation of commercial policy within the business organisation (2nd ed.). Longman.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Hardy, Leonard. Marketing for Profit: A Study in the Formulation of Commercial Policy Within the Business Organisation. 2nd ed. Harlow: Longman, 1971.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Hardy, Leonard. Marketing for Profit: A Study in the Formulation of Commercial Policy Within the Business Organisation. 2nd ed. Longman, 1971.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.