Cita APA

Duncan, H. H. B. B. 1., & Duncan, H. H. B. B. 1. (1975). The Treehouse (1.edition.). Toronto: Simon and Pierre.

Citación estilo Chicago

Duncan, Helen Harger Bodwell Brown 1910-, y Helen Harger Bodwell Brown 1910- Duncan. The Treehouse. 1.edition. Toronto: Simon and Pierre, 1975.

Cita MLA

Duncan, Helen Harger Bodwell Brown 1910-, y Helen Harger Bodwell Brown 1910- Duncan. The Treehouse. 1.edition. Toronto: Simon and Pierre, 1975.