Valerie Quercia, Tim O'Reilly. X window system user's guide - for X11 R3 and R4 of the X window system, 3rd Edition. Volume 3 of The definitive guides to the X window system, O'Reilly, 1990.
@book{0067471,
title = {X window system user's guide - for X11 R3 and R4 of the X window system, 3rd Edition},
author = {Valerie Quercia and Tim O'Reilly},
year = {1990},
researchr = {https://researchr.org/publication/0067471},
cites = {0},
citedby = {0},
volume = {3},
series = {The definitive guides to the X window system},
publisher = {O'Reilly},
isbn = {978-0-937175-14-9},
}