APA-ийн эшлэл(7 дахь хэвлэлт)

Graddy, K., & Stevens, M. (2003). The Impact of School Inputs on Student Performance: An Empirical Study of Private Schools in the United Kingdom. Department of Economics (University of Oxford).

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Graddy, K., ба M. Stevens. The Impact of School Inputs on Student Performance: An Empirical Study of Private Schools in the United Kingdom. Department of Economics (University of Oxford), 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Graddy, K., ба M. Stevens. The Impact of School Inputs on Student Performance: An Empirical Study of Private Schools in the United Kingdom. Department of Economics (University of Oxford), 2003.