1. 01. English Non Fiction The action of subtraction / by Cleary, Brian P., Publication: Minneapolis : Millbrook Press, 2006 . 30 p. : 24 cm. Date:2006 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction Subtracting with seals / by Sellers, Charles, Publication: New York : Gareth Stevens Pub., 2012 . 24 p. : , Includes bibliographical references (p. 23) and index. 19 cm. Date:2012 Availability: Copies available: (1), Actions: