Zen comments on the Mumonkan.

by Shibayama, Zenkei, 1894-1974
Published 1974

Two Zen classics : Mumonkan and Hekiganroku /

Published 1977

No-gate gateway : the original Wu-men kuan /

by Huikai, 1183-1260
Published 2018

Zen for the West. : For the Buddhist Society of London

by Ogata, Sōhaku, 1901-1973
Published 1973

Unlocking the Zen koan : a new translation of the Zen classic Wumenguan /

by Huikai, 1183-1260
Published 1997