Gaya APA

Engstrom, T, W., Larson, R, C. (2001). The Fine Art Of Friendship ; Building And Maintaining Quality Relationships (Trawas) . New York: Thomas Nelson Publishers.

Gaya MLA

Engstrom, Ted, W.., Larson, Robert, C.. "The Fine Art Of Friendship ; Building And Maintaining Quality Relationships (Trawas)". New York: Thomas Nelson Publishers, 2001. Text.