Phipps. Between Gravity and What Cheer. University of Iowa Press.
Citazione stile Chigago Style (17a edizione)Phipps. Between Gravity and What Cheer. University of Iowa Press.
Citatione MLA (9a ed.)Phipps. Between Gravity and What Cheer. University of Iowa Press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.