APA

Hook J. N., Crowell M. G., . (1970). Modern English grammar for teachers. New York: Ronald Press.

Chicago

Hook J N, Crowell Michael G, . 1970. Modern English grammar for teachers. New York: Ronald Press.

Harvard

Hook J. N., Crowell M. G., . (1970). Modern English grammar for teachers. New York: Ronald Press.

MLA

Hook J N, Crowell Michael G, . Modern English grammar for teachers. New York: Ronald Press. 1970.