William Gaskell Allen Jr./William Louis Sachtleben: Across Asia on a Bicycle. The Journey of two American Students from Constantinople to Peking (New York: The Century Co., 1894)
- Digitized:
> Internet Archive (digitizing sponsor: MSN; book contributor: University of California Libraries)
> Internet Archive (digitizing sponsor: MSN; book contributor: Cornell University Library)
> Internet Archive (digitizing sponsor: Google; book contributor: University of Michigan)
> Internet Archive (digitizing sponsor: Google; book contributor: Stanford University Libraries)
> Internet Archive (digitizing sponsor: Google; book contributor: New York Public Library) - No copy listed in Wiener China-Bibliographie