APA (7th ed.) Citation

Awdry, W., & Dalby, C. R. (1991). Tank Engine Thomas again. Heinemann.

Chicago Style (17th ed.) Citation

Awdry, W., and C. Reginald Dalby. Tank Engine Thomas Again. London: Heinemann, 1991.

MLA (9th ed.) Citation

Awdry, W., and C. Reginald Dalby. Tank Engine Thomas Again. Heinemann, 1991.

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