APA Citation

Niss, M. (2018). Learning difficulties in mathematics. What are their nature and origin, and what can we do to counteract them? Universidad de Costa Rica.

Chicago Style Citation

Niss, Mogens. Learning Difficulties in Mathematics. What Are Their Nature and Origin, and What Can We Do to Counteract Them? Universidad de Costa Rica, 2018.

MLA Citation

Niss, Mogens. Learning Difficulties in Mathematics. What Are Their Nature and Origin, and What Can We Do to Counteract Them? Universidad de Costa Rica, 2018.

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