APA引文

Ashraf, P. K. (2017). Some studies on signed graphs. Kannur university.

Chicago Edition Citation

Ashraf, P K. Some Studies on Signed Graphs. Kannur university, 2017.

MLA引文

Ashraf, P K. Some Studies on Signed Graphs. Kannur university, 2017.

警告：這些引文格式不一定是100％准確.