1. Houston, Texas: The Lunar Science Institute. J.D.W. 77058
2. Houston, Texas: National Aeronautics and Space Administration Lunar Receiving Lab. C.H.W. 77058
3. Analysis of Amino Acid Phenylthiohydantoins by Gas Chromatography
4. VandenHeuvel, W. J.A., Smith, J. L. and Cohen, J. S. 1970.Advances in Chromatography, Edited by: Zlatkis, A. 293Houston, Texas: Chromatography Symposium.
5. Resolution of amino acids by gas chromatography