APA (7th ed.) Citation

Veldhuis, N., & Radner, K. (2011). Levels of Literacy.

Chicago Style (17th ed.) Citation

Veldhuis, Niek, and K. Radner. Levels of Literacy. 2011.

MLA (8th ed.) Citation

Veldhuis, Niek, and K. Radner. Levels of Literacy. 2011.

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