APA

Offen H., Offen H., . (1998). Roll Up Roll Up It's Rita. London: Penguin group.

Chicago

Offen Hilda, Offen Hilda, . 1998. Roll Up Roll Up It's Rita. London: Penguin group.

Harvard

Offen H., Offen H., . (1998). Roll Up Roll Up It's Rita. London: Penguin group.

MLA

Offen Hilda, Offen Hilda, . Roll Up Roll Up It's Rita. London: Penguin group. 1998.