PDF source: https://catalog.hathitrust.org/Record/101710137
PDF title: Dictionary of the Sanskrit Language by AmaraSinha With an English Interpretation, and Annotations, by H. T. Colebrooke, printed at Serampoor, 1808
Provides access to pages based on (book 1-3, chapter, section, verse)
Example: https://sanskrit-lexicon-scans.github.io/amara_col/app1/?1,2,3,4
bcs.txt shows all the possibilities.
Note that 13 lines have 0 for section number. For these, app1 accepts either 4 numbers or 3 numbers (book, chapter, verse).