APA (7th ed.) Citation

Bob Graham. (2011). A bus Called heaven (1st.). Walker books.

Chicago Style (17th ed.) Citation

Bob Graham. A Bus Called Heaven. 1st. London: Walker books, 2011.

MLA (9th ed.) Citation

Bob Graham. A Bus Called Heaven. 1st. Walker books, 2011.

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