@misc{1156471, author = {William C Watt}, title = {PLACEBO IV::rules, concordance, sample computer generation.}, year = {1965}, month = {1965-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.255}, language = {en}, }