Willoughby, S. S. (1981). Measuring bowser: Thinking story book. Open Court Publishers.
Chicago-čujuhus (17. p.)Willoughby, Stephen S. Measuring Bowser: Thinking Story Book. Illinois: Open Court Publishers, 1981.
MLA-čujuhus (9. p.)Willoughby, Stephen S. Measuring Bowser: Thinking Story Book. Open Court Publishers, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.