References:
"Mailbox" Market Reports Newsletter Vol. 1 No. 3 Sep. 1974 pg. 3 (Notes)
"Paul Sonneberg Complaint" Market Reports Newsletter Vol. 5 No. 2-3 Apr. 18, 1977 pg. 4 (Notes)
"Market Warnings" Market Reports Newsletter Vol. 5 No. 6-7 Sep. 27, 1977 pg. 7 (Notes)
"Slow Deliveries Drag On" Market Reports Newsletter Vol. 5 No. 6-7 Sep. 27, 1977 pg. 9 (Notes)