This is a 1980s Taiwan knockoff of a book published by Columbia University press in 1976 (using the same typeset, etc).

Caves Books, the Taipei publisher, issued a number of these academic works through the 1980s, and did a good job: quality binding, pages with clear printing, dust jacket, and plastic cover.

For my money, Wilbur’s is still among the best biographies of Sun (in English).

A few pages with light pencil marks in the margins.