TY - GEN AU - Cord, Marian S AU - Petersen, Jean D AU - Lojko, Matthew S AU - Haas, Rudolph H C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1968-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.MONO.70v4 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1968 TI - Microwave spectral tables ::volume IV. polyatomic molecules without internal rotation ER -