Van der Vynckt, S., & Barclay, E. (1984). The Unesco resource pack for nutrition teaching-learning: An introduction to volume 1. Division of Science, Technical and Vocational Education, United Nations Educational, Scientific, and Cultural Organisation.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিVan der Vynckt, Susan, এবং Ellen Barclay. The Unesco Resource Pack for Nutrition Teaching-learning: An Introduction to Volume 1. Paris: Division of Science, Technical and Vocational Education, United Nations Educational, Scientific, and Cultural Organisation, 1984.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিVan der Vynckt, Susan, এবং Ellen Barclay. The Unesco Resource Pack for Nutrition Teaching-learning: An Introduction to Volume 1. Division of Science, Technical and Vocational Education, United Nations Educational, Scientific, and Cultural Organisation, 1984.