@article{63239,
      author = {Jnanananda,},
      url = {http://library.usi.edu/record/63239},
      title = {High vacua; principles, production, and measurement.},
      publisher = {D. Van Nostrand Co.,},
      recid = {63239},
      pages = {xiii, 310 p.},
      address = {New York,},
      year = {1947},
}