00533 a2200157 4500 0 0 0 0 NFIC CCL CCL GEN 2021-04-12 Purchase G20055 0 QA109. HUD 1984 G20055 2021-04-12 00:00:00 C.1 2021-04-12 BK 5618 5618 0393955362 QA109.CHA 1984 Hudson Deborah author The challenge of the unknown : teaching guide to accompany the film series/ Deborah A. Hudson and Joshua G Miller New York : Norton, ♭1986. 276 pages : illustrations ; 27 cm lncludes index Mathematics -- Study and teaching. Miller, G Joshua lcc BK 109 HUD QA