TY - BOOK ID - 133312579 TI - Graphical construction of wave refraction diagrams, by J.W. Johnson, M.P. O'Brien, and J.D. Isaacs. Jan. 1948 PY - 1948 PB - Washington [U.S. Govt. Print. Off DB - UniCat KW - Wave-motion, Theory of KW - Waves UR - https://www.unicat.be/uniCat?func=search&query=sysid:133312579 AB - ER -