Shepard, P. 1. . . e., Shepard, P. 1. . . . . e., & McKinley, D. (1969). The subversive science; essays toward an ecology of man. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Shepard, Paul 1925- ed, Paul 1925- ed Shepard, agus Daniel McKinley. The Subversive Science; Essays Toward an Ecology of Man. Boston: Houghton Mifflin, 1969.
Lua MLA (9ú heag.)Shepard, Paul 1925- ed, et al. The Subversive Science; Essays Toward an Ecology of Man. Houghton Mifflin, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.