@misc{1198196, author = {Patrick W Cooke}, title = {Trade implications of processes and production methods (PPMs):}, year = {1990}, month = {1990-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.90-4265}, language = {en}, }