Maintainer's helper (group B)
Subtitle: Complete study guide to pass high on your civil service test
By: by the Arco Editorial Board.
Edition: 3d ed.
Series: Arco civil service test tutor
Published: 1967
Place of publication: New York
Language: eng
Subjects: Subways -- New York (State) -- New York.; Civil service -- New York (State) -- New York -- Examinations.