APA

Bolles E. B., . (1982). So much to say : how to help your child learn to talk. New York: St. Martin's Press.

Chicago

Bolles Edmund Blair, . 1982. So much to say : how to help your child learn to talk. New York: St. Martin's Press.

Harvard

Bolles E. B., . (1982). So much to say : how to help your child learn to talk. New York: St. Martin's Press.

MLA

Bolles Edmund Blair, . So much to say : how to help your child learn to talk. New York: St. Martin's Press. 1982.