APA (7th ed.) Citation

Postgate, O. (1968). Ivor the Engine / pictures by Peter Firmin (New ed.). Abelard-Schuman.

Chicago Style (17th ed.) Citation

Postgate, Oliver. Ivor the Engine / Pictures by Peter Firmin. New ed. London: Abelard-Schuman, 1968.

MLA (9th ed.) Citation

Postgate, Oliver. Ivor the Engine / Pictures by Peter Firmin. New ed. Abelard-Schuman, 1968.

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