APA引文

Marrero, O., & Pasles, P. C. (2016). A combinatorial problem on a directed graph.

Citación estilo Chicago

Marrero, Osvaldo, y Paul C. Pasles. A Combinatorial Problem On a Directed Graph. 2016.

MLA引文

Marrero, Osvaldo, y Paul C. Pasles. A Combinatorial Problem On a Directed Graph. 2016.

警告：這些引文格式不一定是100％准確.