TY - GEN T1 - Securities -- Attorney's Opinion Letter in an Unregistered Sale -- Standard of Culpability in SEC Injunction Action -- SEC v. Spectrum, Ltd. AU - Elkins, Randolph H. DA - 1974-5-1 PY - 2024 PB - unav JO - Boston College Law Review IS - 5 VL - 15 SP - 996 ER -