APA Style

Boyd, John R., Boyd, Mary Ann. (1991). Before Book One: Listening Activities for Prebeginning Students of English, Second Edition (2nd). Englewood Cliffs, New Jersey: Prentice-Hall, Inc..

Chicago Style

Boyd, John R., Boyd, Mary Ann. Before Book One: Listening Activities for Prebeginning Students of English, Second Edition. 2nd Englewood Cliffs, New Jersey: Prentice-Hall, Inc., 1991. Text.

MLA Style

Boyd, John R., Boyd, Mary Ann. Before Book One: Listening Activities for Prebeginning Students of English, Second Edition. 2nd Englewood Cliffs, New Jersey: Prentice-Hall, Inc., 1991. Text.

Turabian Style

Boyd, John R., Boyd, Mary Ann. Before Book One: Listening Activities for Prebeginning Students of English, Second Edition. 2nd Englewood Cliffs, New Jersey: Prentice-Hall, Inc., 1991. Print.