@misc{indiciaeccccaf046a04, title = {Preliminary description of Apollo 15 sample environments}, author = {Swann, G. A. and Hait, M. H. and Schaber, G. G. and Freeman, V. L. and Ulrich, G. E. and Wolfe, E. W. and Reed, V. S. and Sutton, R. L.}, year = {1971}, url = {https://ntrs.nasa.gov/citations/19720006119}, note = {Source identifier: 19720006119} }