APA (7th ed.) Citation

Helmore, G. A. (1969). Piaget - a practical consideration / by G.A. Helmore. Pergamon.

Chicago Style (17th ed.) Citation

Helmore, G. A. Piaget - a Practical Consideration / by G.A. Helmore. Pergamon, 1969.

MLA (9th ed.) Citation

Helmore, G. A. Piaget - a Practical Consideration / by G.A. Helmore. Pergamon, 1969.

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