APA (7th ed.) Citation

Gray, W. S. (1969). The teaching of reading and writing : an international survey / by W.S. Gray: An international survey (2nd ed.). Unesco.

Chicago Style (17th ed.) Citation

Gray, W. S. The Teaching of Reading and Writing : An International Survey / by W.S. Gray: An International Survey. 2nd ed. Unesco, 1969.

MLA (9th ed.) Citation

Gray, W. S. The Teaching of Reading and Writing : An International Survey / by W.S. Gray: An International Survey. 2nd ed. Unesco, 1969.

Warning: These citations may not always be 100% accurate.