Clark, Walter Eugene. 1930. The Āryabhaṭīya of Āryabhaṭa (Chicago, Ill: The University of Chicago press)
Worldcat record:
http://www.worldcat.org/oclc/315884050
@Book{clar-arya,
author = {Walter Eugene Clark},
title = {The Āryabhaṭīya of Āryabhaṭa},
date = {1930},
location = {Chicago, Ill},
publisher = {The University of Chicago press},
subtitle = {An Ancient Indian Work on Mathematics and Astronomy},
url = {
https://archive.org/details/in.ernet.dli.2015.61416},
urldate = {2017-06-20},
ppn_gvk = {247375519},
}