Heller, M. (1990). The ontology of physical objects: Four-dimensional hunks of matter. Cambridge [England] New York: Cambridge University Press.
Παραπομπή Chicago StyleHeller, Mark. The Ontology of Physical Objects: Four-dimensional Hunks of Matter. Cambridge [England] New York: Cambridge University Press, 1990.
Παραπομπή MLAHeller, Mark. The Ontology of Physical Objects: Four-dimensional Hunks of Matter. Cambridge [England] New York: Cambridge University Press, 1990.
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