Mwangi, G. (et al.) Mentor Science and Technology : learner's book grade 6 / cover tittle. J. Gathongo, and Z. Muchunku. - 1st ed. - [Nairobi] : Mentor, 2022. - ii, 174 p. : col. ill. ; ISBN: 9789966012265 Subjects--Topical Terms: Dewey Class. No.: 372.500