APA (7th ed.) Citation

Quek, S. G. (2015). Engel conditions in certain groups / Quek Shio Gai.

Chicago Style (17th ed.) Citation

Quek, Shio Gai. Engel Conditions in Certain Groups / Quek Shio Gai. 2015.

MLA (9th ed.) Citation

Quek, Shio Gai. Engel Conditions in Certain Groups / Quek Shio Gai. 2015.

Warning: These citations may not always be 100% accurate.