APA

Johnson W.C, McKey D, . (1990). Boy on a Bus. London: Grosvenor Book.

Chicago

Johnson W.C, McKey D, . 1990. Boy on a Bus. London: Grosvenor Book.

Harvard

Johnson W.C, McKey D, . (1990). Boy on a Bus. London: Grosvenor Book.

MLA

Johnson W.C, McKey D, . Boy on a Bus. London: Grosvenor Book. 1990.