Weingarten, R., & Naef, W. (2005). 6:30 am: Robert Weingarten. Foreword by Weston Naef. Hatje Cantz Verlag.
Citazione stile Chigago Style (17a edizione)Weingarten, Robert, e Weston Naef. 6:30 Am: Robert Weingarten. Foreword by Weston Naef. Ostfildern-Ruit: Hatje Cantz Verlag, 2005.
Citatione MLA (8a ed.)Weingarten, Robert, e Weston Naef. 6:30 Am: Robert Weingarten. Foreword by Weston Naef. Hatje Cantz Verlag, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.