APA-ийн эшлэл(7 дахь хэвлэлт)

CLEMENTS, D. H. (2021). Learning and teaching early math: : the learning trajectories approach. Routledge.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

CLEMENTS, Douglas H. Learning and Teaching Early Math: : The Learning Trajectories Approach. Routledge, 2021.

MLA -ийн эшлэл (9 дэх хэвлэлт)

CLEMENTS, Douglas H. Learning and Teaching Early Math: : The Learning Trajectories Approach. Routledge, 2021.