Dyfyniad APA

Lieber, L. R., & Lieber, H. G. (1945). Einstein theory of relativity. Dennis Dobson.

Dyfyniad Arddull Chicago

Lieber, Lillian R., and Hugh Gray Lieber. Einstein Theory of Relativity. New York, Toronto: Dennis Dobson, 1945.

Dyfyniad MLA

Lieber, Lillian R., and Hugh Gray Lieber. Einstein Theory of Relativity. Dennis Dobson, 1945.

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