Marine pipefitting (a manual of instruction for beginning and advanced marine pipefitters). Prepared by the Commonwealth of Pennsylvania, Department of Public Instruction, Division of Industrial Education, in cooperation with Sun Shipbuilding and Dry Dock Company, Chester, Pennsylvania, School District, City of Chester, Chester, Pennsylvania, and United States Office of Education, Federal Security Agency. 1944

Marine pipefitting (a manual of instruction for beginning and advanced marine pipefitters). Prepared by the Commonwealth of Pennsylvania, Department of Public Instruction, Division of Industrial Education, in cooperation with Sun Shipbuilding and Dry Dock Company, Chester, Pennsylvania, School District, City of Chester, Chester, Pennsylvania, and United States Office of Education, Federal Security Agency. 1944 | Libri antichi e moderni | Pennsylvania. Dept. Of Public Instruction.