Cita APA (7a ed.)
Smithsonian Institution Symposium (16-18 feb. l967). (1968). The quality of man's environment. Voice of American Forum Lectures.
Cita Chicago Style (17a ed.)
Smithsonian Institution Symposium (16-18 feb. l967). The Quality of Man's Environment. United States: Voice of American Forum Lectures, 1968.
Cita MLA (9a ed.)
Smithsonian Institution Symposium (16-18 feb. l967). The Quality of Man's Environment. Voice of American Forum Lectures, 1968.
Precaución: Estas citas no son 100% exactas.