Issue No.04 - April (1975 vol.8)
Information on the products and services advertised in PRODUCT PROFILE may be obtained by writing the product listing's number (found following each listing) on the postage-paid reader service card in this issue.
"Product Profile", Computer, vol.8, no. 4, pp. 62, April 1975, doi:10.1109/C-M.1975.218937