Gaya APA

Joni, E, T., Singleton, B. (2001). Friendship Unlimited : how you can help a disabled friend (Trawas) . Illinois: Harold Shaw Publishers.

Gaya MLA

Joni, Eareckson, Tada,., Singleton, Bev. "Friendship Unlimited : how you can help a disabled friend (Trawas)". Illinois: Harold Shaw Publishers, 2001. Text.