Berry, M. (1944). Principles of cosmology and gravitation. Adam Hilger.
Chicago-čujuhus (17. p.)Berry, Michael. Principles of Cosmology and Gravitation. Bristol: Adam Hilger, 1944.
MLA-čujuhus (9. p.)Berry, Michael. Principles of Cosmology and Gravitation. Adam Hilger, 1944.
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