APA-ийн эшлэл(7 дахь хэвлэлт)

Howe, C., Nunes, T., & Bryant, P. (2011). RATIONAL NUMBER AND PROPORTIONAL REASONING: USING INTENSIVE QUANTITIES TO PROMOTE ACHIEVEMENT IN MATHEMATICS AND SCIENCE.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Howe, C., T. Nunes, ба P. Bryant. RATIONAL NUMBER AND PROPORTIONAL REASONING: USING INTENSIVE QUANTITIES TO PROMOTE ACHIEVEMENT IN MATHEMATICS AND SCIENCE. 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Howe, C., et al. RATIONAL NUMBER AND PROPORTIONAL REASONING: USING INTENSIVE QUANTITIES TO PROMOTE ACHIEVEMENT IN MATHEMATICS AND SCIENCE. 2011.