APA (7 ম সংস্করণ) উদ্ধৃতি

(2017). Delta Academic Objectives - Listening and Note Taking Skills B2-C1 Coursebook with Audio CD. Stuttgart Klett Sprachen GmbH.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Delta Academic Objectives - Listening and Note Taking Skills B2-C1 Coursebook with Audio CD. German: Stuttgart Klett Sprachen GmbH, 2017.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Delta Academic Objectives - Listening and Note Taking Skills B2-C1 Coursebook with Audio CD. Stuttgart Klett Sprachen GmbH, 2017.