APA

Raubicheck L., . (1939). Improving your speech: a pupil's practice book in speech training with phonetic aids. New York City: Noble and Noble.

Chicago

Raubicheck Letitia, . 1939. Improving your speech: a pupil's practice book in speech training with phonetic aids. New York City: Noble and Noble.

Harvard

Raubicheck L., . (1939). Improving your speech: a pupil's practice book in speech training with phonetic aids. New York City: Noble and Noble.

MLA

Raubicheck Letitia, . Improving your speech: a pupil's practice book in speech training with phonetic aids. New York City: Noble and Noble. 1939.