APA

Kernan D., . (1975). A steeps to english. New york: McGraw-Hill.

Chicago

Kernan Doris, . 1975. A steeps to english. New york: McGraw-Hill.

Harvard

Kernan D., . (1975). A steeps to english. New york: McGraw-Hill.

MLA

Kernan Doris, . A steeps to english. New york: McGraw-Hill. 1975.