Цитирование APA (7-е изд.)

Halim, S., & Halim, F. (2020). Competitive programming 4: The lower bound of programming contests in the 2020s. Ingram content group.

Цитирование в стиле Чикаго (17-е изд.)

Halim, Steven, и Felix Halim. Competitive Programming 4: The Lower Bound of Programming Contests in the 2020s. United States, UK: Ingram content group, 2020.

Цитирование MLA (8-е изд.)

Halim, Steven, и Felix Halim. Competitive Programming 4: The Lower Bound of Programming Contests in the 2020s. Ingram content group, 2020.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.