APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.