Borek Sipek : Collection TwentyOne 2001.

MLA

Sipek, Borek, and Christian Tortu. Borek Sipek : Collection Twentyone 2001. Prague: Arzenal, 2001.

APA

Sipek, B., & Tortu, C. (2001). Borek Sipek : Collection TwentyOne 2001. Prague: Arzenal.

Chicago

Sipek, Borek, and Christian Tortu. Borek Sipek: Collection Twentyone 2001. Prague: Arzenal, 2001.