APA (7e ed.) Bronvermelding
ebrary, Inc, & Powers, E. (2011). Freedom of speech: The history of an idea. Bucknell University Press.
Chicago (17e ed.) Bronvermelding
ebrary, Inc, en Elizabeth Powers. Freedom of Speech: The History of an Idea. Lewisburg [Pa.]: Bucknell University Press, 2011.
MLA (9e ed.) Bronvermelding
ebrary, Inc, en Elizabeth Powers. Freedom of Speech: The History of an Idea. Bucknell University Press, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.