cam a22 1 4500 533435595 CHVBK 20181121081909.0 150626s1965 xxu m 00 eng d (SNL)991002490479703976 (Sz)327045-41snl_51 (Sz)vtls000327045 (Sz)000327045 Sz SAZ MacKnight Betty Jean A study of the development of elementary school children's concept of volume Ann Arbor/Mich. (University Microfilms) [1965]. II, XII Ill. 23 cm. txt rdacontent n rdamedia nc rdacarrier Thesis phil. Cornell University 1965. 1900280438 dea ps NB052-2000 nt SNL 100 1- MacKnight Betty Jean BK020300 XK020000 XK020000 SNL NB001 NB001 NG 10274 NB10010