Dyfyniad APA

Feynman, R. P. The meaning of it all: Thoughts of a citizen scientist. Basic Books 1998.

Dyfyniad Arddull Chicago

Feynman, Richard P. The Meaning of It All: Thoughts of a Citizen Scientist. New York: Basic Books 1998.

Dyfyniad MLA

Feynman, Richard P. The Meaning of It All: Thoughts of a Citizen Scientist. Basic Books 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.