Παραπομπή APA

Einstein, A. (1956). The meaning of relativity (Ed.6.). Chapman and Hall.

Παραπομπή Chicago Style

Einstein, Albert. The Meaning of Relativity. Ed.6. London: Chapman and Hall, 1956.

Παραπομπή MLA

Einstein, Albert. The Meaning of Relativity. Ed.6. Chapman and Hall, 1956.