Dyfyniad APA
ebrary, Inc, & Backhaus, J. (2002). Eugen Duhring (1833-1921) and the freedom of teaching and research. Emerald Group Publishing.
Dyfyniad Arddull Chicago
ebrary, Inc, and Jurgen Backhaus. Eugen Duhring (1833-1921) and the Freedom of Teaching and Research. Bradford, England: Emerald Group Publishing, 2002.
Dyfyniad MLA
ebrary, Inc, and Jurgen Backhaus. Eugen Duhring (1833-1921) and the Freedom of Teaching and Research. Emerald Group Publishing, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.