Langdon, G. (1957). Helping parents understand their child's school;: A handbook for teachers. Prentice-Hall.
শিকাগো স্টাইলে সাইটেশনLangdon, Grace. Helping Parents Understand Their Child's School;: A Handbook for Teachers. N.J: Prentice-Hall, 1957.
এমএলএ সাইটেশনLangdon, Grace. Helping Parents Understand Their Child's School;: A Handbook for Teachers. Prentice-Hall, 1957.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.