एपीए उद्धरण

Lowen, R. (1985). On the existence of natural non-topological, fuzzy topological spaces. Heldermann.

शिकागो स्टाइल उद्धरण

Lowen, R. On the Existence of Natural Non-topological, Fuzzy Topological Spaces. Berlin: Heldermann, 1985.

एमएलए उद्धरण

Lowen, R. On the Existence of Natural Non-topological, Fuzzy Topological Spaces. Heldermann, 1985.