Παραπομπή σε μορφή APA (7η εκδ.)

Schools Council, Nuffield Foundation, Scottish Education Department. (1973). Trees ; Stages 1 & 2: A unit for teachers. Macdonald Educational.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Schools Council, Nuffield Foundation, Scottish Education Department. Trees ; Stages 1 & 2: A Unit for Teachers. London: Macdonald Educational, 1973.

Παραπομπή σε μορφή MLA (9th εκδ.)

Schools Council, Nuffield Foundation, Scottish Education Department. Trees ; Stages 1 & 2: A Unit for Teachers. Macdonald Educational, 1973.