TY - RPRT TI - Letter Circular 872sup1: continuation to date of bibliography of unclassified books and reports on gas turbines, jet propulsion and rocket power plants PY - 1948 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - LCIRC 872sup1 DO - 10.6028/NBS.LCIRC.872sup1 ER -