Tribe, M. Pritchard, A.J. Biological systems,energy sources and biology teaching - UNESCO 1984 - 56 - Science education Biofuels - Science and technology education document series 9 . = Tribe, M. Standard No.: A Standard Tech. Report. No.: LCCN: B Nat. Bib. No.: 4651 Nat. Bib. Agency Control No.: 371:5 TRS Subjects--Topical Terms: Education Universal Decimal Class. No.: 371:5