APA (7th ed.) Citation

Richmond, P. G. (1970). An introduction to Piaget / by P. G. Richmond. Routledge & K. Paul.

Chicago Style (17th ed.) Citation

Richmond, Peter Graham. An Introduction to Piaget / by P. G. Richmond. London: Routledge & K. Paul, 1970.

MLA (9th ed.) Citation

Richmond, Peter Graham. An Introduction to Piaget / by P. G. Richmond. Routledge & K. Paul, 1970.

Warning: These citations may not always be 100% accurate.