"Mack's Big 4."; "Eastern Kentucky Mack. Middlesboro Branch (Middlesboro, Ky.)--Periodicals.", "Bluefield Mack (Bluefield, W. Va.)--Periodicals.", "Mountain State Mack (Belle, W. Va.)--Periodicals.", "Eastern Kentucky Mack (Prestonburg, Ky.)--Periodicals."; "1975"; "

Serial. Printed Ephemera Collection has: v.3:no.8 (1975:Jan.).

"; ""; "P12221"; "pec"; "Bluefield Mack (Bluefield, W. Va.)--Periodicals.", "Eastern Kentucky Mack. Middlesboro Branch (Middlesboro, Ky.)--Periodicals.", "Mountain State Mack (Belle, W. Va.)--Periodicals.", "Eastern Kentucky Mack (Prestonburg, Ky.)--Periodicals."; "14256"; .