TY - RPRT TI - Comparison of photon interaction cross section data sets. VII. Biggs - Lighthill (rev.) and ENDFB AU - Simmons, G L AU - Hubbell, J H PY - 1973 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 73-241 DO - 10.6028/NBS.IR.73-241 ER -