APA Style

Cowperthwaite, J. (1970s). The Conceptual Foundations of Contemporary Relativity Theory (1st Edition (leave blank if not specified). : Berlin / New York (depends o: 1970s (check exact year from your copy).

MLA Style

Cowperthwaite, John. "The Conceptual Foundations of Contemporary Relativity Theory". 1st Edition (leave blank if not specified : Berlin / New York (depends o: 1970s (check exact year from your copy), 1970s. BOOK.