Herman Chan-En Liu: Non-verbal intelligence tests for use in China. Thesis (PH. D.)–Columbia University; Published also as Teachers College, Columbia University, Contributions to education, no. 126. (1922)
- Digitized:
> Internet Archive (Book contributor & digitizing sponsor: The Library of Congress)
> Internet Archive (Book contributor: Cornell University, digitizing sponsor: MSN)
> Internet Archive (Book contributor: Stanford University, digitizing sponsor: Google) - Entry in Wiener China-Bibliographie