Heller, M. (1992). Theoretical foundations of cosmology: Introduction to the global structure of space-time. World Scientific.
Citace podle Chicago (17th ed.)Heller, Michael. Theoretical Foundations of Cosmology: Introduction to the Global Structure of Space-time. Singapur: World Scientific, 1992.
Citace podle MLA (9th ed.)Heller, Michael. Theoretical Foundations of Cosmology: Introduction to the Global Structure of Space-time. World Scientific, 1992.
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