Jeffery, Peter L.
A handbook on the overhead projector / Peter Jeffery. - [Port Moresby] : Teaching Methods and Materials Centre, University of Papua and New Guinea, 1971. - 20 leaves : ill.
At head of title : Papua New Guinea Department of Education.
Overhead projection.
Teaching--Aids and devices.
A handbook on the overhead projector / Peter Jeffery. - [Port Moresby] : Teaching Methods and Materials Centre, University of Papua and New Guinea, 1971. - 20 leaves : ill.
At head of title : Papua New Guinea Department of Education.
Overhead projection.
Teaching--Aids and devices.