APA (7th ed.) Citation

Pienkowski,Jan. (1984). Christmas. Penguin books.

Chicago Style (17th ed.) Citation

Pienkowski,Jan. Christmas. England: Penguin books, 1984.

MLA (9th ed.) Citation

Pienkowski,Jan. Christmas. Penguin books, 1984.

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