Houston, J. (1989). The transforming friendship. A lion book.
Chicago-čujuhus (17. p.)Houston, James. The Transforming Friendship. Oxford: A lion book, 1989.
MLA-čujuhus (9. p.)Houston, James. The Transforming Friendship. A lion book, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.