APA সাইটেশন

Floyd, A. (1979). Cognitive development in the school years. Croom Helm.

শিকাগো স্টাইলে সাইটেশন

Floyd, Ann. Cognitive Development in the School Years. London: Croom Helm, 1979.

এমএলএ সাইটেশন

Floyd, Ann. Cognitive Development in the School Years. Croom Helm, 1979.