Robinson, R. A. (2004). The friendship book: The art of making and keeping friends.
Chicago-stil citatRobinson, Rita; Author. The Friendship Book: The Art of Making and Keeping Friends. New Delhi, Viva Books Private Ltd, 2004.
MLA-referensRobinson, Rita; Author. The Friendship Book: The Art of Making and Keeping Friends. 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.