TY  - BOOK
AU  - Koch,Harry Walter
ED  - Ken-Books, San Francisco.
TI  - Janitorial and maintenance examinations: a study guide for civil service 
T2  - Ken Book self-study courses
PY  - 1975///
CY  - San Francisco
PB  - Ken-Books
KW  - Janitors
KW  - Examinations, questions, etc
KW  - Civil service
KW  - Examinations
UR  - http://www.archive.org/details/janitorialmainte00kenb
UR  - http://www.openlibrary.org/books/OL24373802M
ER  -