Otis, H., & Spencer, A. (1961). Camel's farewell: By Harry Otis. [Drawings by Andrew Spencer]. Pan-Graphic.
Citazione stile Chigago Style (17a edizione)Otis, Harry, e Andrew Spencer. Camel's Farewell: By Harry Otis. [Drawings by Andrew Spencer]. San Francisco, Calif.: Pan-Graphic, 1961.
Citatione MLA (8a ed.)Otis, Harry, e Andrew Spencer. Camel's Farewell: By Harry Otis. [Drawings by Andrew Spencer]. Pan-Graphic, 1961.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.