"Circle Products - Copy Confusion " Market Reports Newsletter Vol. 2 No. 8 May 20, 1975 pg. 4 (Notes)
"Special Interests & Forthcoming Reviews" Market Reports Newsletter Vol. 2 No. 10 Jun. 24, 1975 pg. 3 (Notes)
"Circle Products & Super FF Film" Market Reports Newsletter Vol. 2 No. 10 Jun. 24, 1975 pg. 4 (Notes)
"Reviews Next Issue" Market Reports Newsletter Vol. 2 No. 10 Jun. 24, 1975 pg. 5 (Notes)
"We Blush Bright Red" Market Reports Newsletter Vol. 2 No. 10 Jun. 24, 1975 pg. 5 (Notes)
"Mailbox - September" Market Reports Newsletter Vol. 3 No. 6 Oct. 14, 1975 pg. 4 (Notes)
"Magazines, Slides, Etc." Market Reports Newsletter Vol. 3 No. 8 Dec. 15, 1975 pg. 3 (Notes)
Circle Products. Mandate Vol. 1 No. 10 Jan. 1976 pg. 66 (Advertisement)
"Reviews Include & Forthcoming" Market Reports Newsletter Vol. 4 No. 1 Mar. 16, 1976 pg. 2 (Notes)
"Reviews in This Issue" Market Reports Newsletter Vol. 4 No. 2 Apr. 6, 1976 pg. 2 (Notes)
"March Mailbox" Market Reports Newsletter Vol. 4 No. 2 Apr. 6, 1976 pg. 4 (Notes)
"Reviews - Included & Forthcoming" Market Reports Newsletter Vol. 4 No. 8 Oct. 5, 1976 pg. 4 (Notes)
"Late News: Peter Berlin Distribution Deal" Market Reports Newsletter Vol. 4 No. 9 Nov. 12, 1976 pg. 4 (Notes)
"Market Testing" Market Reports Newsletter Vol. 4 No. 10 Dec. 28, 1976 pg. 2 (Notes)
"Circle Products???" Market Reports Newsletter Vol. 5 No. 9-10 May 10, 1978 pg. 3 (Notes)