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1.	Image from Google Jackets	Biological systems,energy sources and biology teaching by Tribe, M Pritchard, A.J Series: Science and technology education document series ; 9 Language: Publication details: UNESCO ; 1984 Availability: Items available for reference: National Science Library & Resource Centre: Staff collection (1). Save to lists Add to cart (remove)
2.	Image from Google Jackets	Ecology,ecosystem management and biology teaching by Spellerberg, I.F Pritchard, A.J Language: Publication details: UNESCO ; 1984 Availability: Items available for reference: National Science Library & Resource Centre: Staff collection (1). Save to lists Add to cart (remove)
3.	Image from Google Jackets	Agriculture and biology teaching by Rao, A.N Pritchard, A.J Series: Science and Technology Education Document Series 11 Language: Publication details: UNESCO Paris ; 1984 Availability: Items available for reference: National Science Library & Resource Centre: Staff collection (1). Save to lists Add to cart (remove)

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