Cita APA (7th ed.)
Orpwood, G., & Werdelin, I. (1987). Science and technology in the primary school of tomorrow.
Cita Chicago (17th ed.)
Orpwood, Graham, i Ingvar Werdelin. Science and Technology in the Primary School of Tomorrow. 1987.
Cita MLA (9th ed.)
Orpwood, Graham, i Ingvar Werdelin. Science and Technology in the Primary School of Tomorrow. 1987.
Atenció: Aquestes cites poden no estar 100% correctes.