APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, Backhouse, C., & Flaherty, D. H. (1992). Challenging times: The women's movement in Canada and the United States. McGill-Queen's University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, Constance Backhouse, ба David H. Flaherty. Challenging Times: The Women's Movement in Canada and the United States. Montreal ; Buffalo: McGill-Queen's University Press, 1992.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, et al. Challenging Times: The Women's Movement in Canada and the United States. McGill-Queen's University Press, 1992.