Necessary numbers :
Blocksma, Mary.
Necessary numbers : An everyday guide to sizes, measures, and more / Uncle John's presents Mary Blocksma. - San Diego, Calif. : Portable Press, 2002. - xi, 292 p. : ill. - 530 .
Rev. ed. of: Reading the numbers. 1989.
Includes bibliographical references (p. 277-284) and index.
1571458662 (pbk.)
Weights and measures.
Weights and measures--United States.
530
Necessary numbers : An everyday guide to sizes, measures, and more / Uncle John's presents Mary Blocksma. - San Diego, Calif. : Portable Press, 2002. - xi, 292 p. : ill. - 530 .
Rev. ed. of: Reading the numbers. 1989.
Includes bibliographical references (p. 277-284) and index.
1571458662 (pbk.)
Weights and measures.
Weights and measures--United States.
530