Kuhn, H. P., & Kassner, G. (2013). Hans Peter Kuhn - Flags: With photos by Gerhard Kassner. ruksaldruck.
Citazione stile Chigago Style (17a edizione)Kuhn, Hans Peter, e Gerhard Kassner. Hans Peter Kuhn - Flags: With Photos by Gerhard Kassner. Berlin: ruksaldruck, 2013.
Citatione MLA (8a ed.)Kuhn, Hans Peter, e Gerhard Kassner. Hans Peter Kuhn - Flags: With Photos by Gerhard Kassner. ruksaldruck, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.