APA (7th ed.) Citation

Jóhannsdóttir, Á., & Íslands, H. (2010). English in the 4th grade in Iceland: Exploring exposure and measuring vocabulary size of 4th grade students.

Chicago Style (17th ed.) Citation

Jóhannsdóttir, Ásrún, and Háskóli Íslands. English in the 4th Grade in Iceland: Exploring Exposure and Measuring Vocabulary Size of 4th Grade Students. 2010.

MLA (9th ed.) Citation

Jóhannsdóttir, Ásrún, and Háskóli Íslands. English in the 4th Grade in Iceland: Exploring Exposure and Measuring Vocabulary Size of 4th Grade Students. 2010.

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