Cita APA (7th ed.)

Xu, K., Gould, M., & Howison, S. (2020). Multi-level order-flow imbalance in a limit order book. World Scientific Publishing.

Cita Chicago (17th ed.)

Xu, K., MD Gould, i SD Howison. Multi-level Order-flow Imbalance in a Limit Order Book. World Scientific Publishing, 2020.

Cita MLA (9th ed.)

Xu, K., et al. Multi-level Order-flow Imbalance in a Limit Order Book. World Scientific Publishing, 2020.