APA

Roger Langridge (Author) Fred Stresing, .Abigail & The Snowman. : KaBOOM!.

Chicago

Roger Langridge (Author) Fred Stresing, .Abigail & The Snowman. : KaBOOM!.

Harvard

Roger Langridge (Author) Fred Stresing, .Abigail & The Snowman. : KaBOOM!.

MLA

Roger Langridge (Author) Fred Stresing, .: KaBOOM!. .