APA

Thornton G. H. ., . (1977). Good english. Suffolk: Teach Yourself Books.

Chicago

Thornton G H, . 1977. Good english. Suffolk: Teach Yourself Books.

Harvard

Thornton G. H. ., . (1977). Good english. Suffolk: Teach Yourself Books.

MLA

Thornton G H, . Good english. Suffolk: Teach Yourself Books. 1977.