Citazione Stile APA (7a Edizione)

Pennewitz, U., & Penndorf, J. (2011). Robert Seidel: FOLDS. DZA Druckerei zu Altenburg.

Citazione stile Chigago Style (17a edizione)

Pennewitz, Ulrike, e Jutta Penndorf. Robert Seidel: FOLDS. Altenburg: DZA Druckerei zu Altenburg, 2011.

Citatione MLA (8a ed.)

Pennewitz, Ulrike, e Jutta Penndorf. Robert Seidel: FOLDS. DZA Druckerei zu Altenburg, 2011.