Dust jackets (Bindings)
New York, Harcourt, Brace 
Will; Nicolas; William Lipkind; Fritz Eichenberg; Juvenile Collection (Library of Congress)
|ISBN:||0156309505 9780156309509 0152275290 9780152275297|
|注意：||Art techniques used: Color separations on acetate. 4 bold colors in blocks.
William Lipkind (December 17, 1904, New York City - October 2, 1974) was an American author most famous for his children's picture book collaborations with Russian-born American artist Nicholas Mordvinoff (September 27, 1911-1973), published under the joint pseudonym Will and Nicolas. Before his writing and illustrating career, Lipkind was already an established anthropologist, graduating from Columbia in 1937.
|獎賞：||Caldecott Medal, 1952|
|描述：||32 unnumbered pages : color illustrations ; 28 cm|
|責任：||by Will and Nicolas.|
Two dogs who have found a bone can't decide who should eat it.