APA
Backwell P. M., . (1988). Language curriculam planning for deaf children. UNESCO, Paris: .
Chicago
Backwell Peter M, . 1988. Language curriculam planning for deaf children. UNESCO, Paris: .
Harvard
Backwell P. M., . (1988). Language curriculam planning for deaf children. UNESCO, Paris: .
MLA
Backwell Peter M, . Language curriculam planning for deaf children. UNESCO, Paris: . 1988.