Heap, S. (1984). As the twig is bent: Political essays. Fringe Press.
Citace podle Chicago (17th ed.)Heap, Susan. As the Twig Is Bent: Political Essays. Dunedin [N.Z.]: Fringe Press, 1984.
Citace podle MLA (9th ed.)Heap, Susan. As the Twig Is Bent: Political Essays. Fringe Press, 1984.
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