Liebers, A. (1949). Engineering tests, civil, mechanical and electrical: A careful selection of civil service engineering tests with answers, designed to help candidates pass high and receive appointments. Arco Pub. Co..
Chicago Style (17th ed.) CitationLiebers, Arthur. Engineering Tests, Civil, Mechanical and Electrical: A Careful Selection of Civil Service Engineering Tests with Answers, Designed to Help Candidates Pass High and Receive Appointments. New York: Arco Pub. Co., 1949.
MLA (9th ed.) CitationLiebers, Arthur. Engineering Tests, Civil, Mechanical and Electrical: A Careful Selection of Civil Service Engineering Tests with Answers, Designed to Help Candidates Pass High and Receive Appointments. Arco Pub. Co., 1949.
Warning: These citations may not always be 100% accurate.