Editore: International Aerobatic Club,, Wisconsin:, 1981
Da: Nelson & Nelson, Booksellers, Trenton, SC, U.S.A.
Membro dell'associazione: IOBA
Softcover. Four softcover manuals that we assume to be all four in the series (one volume is not marked with a numeral, so we take this to be Volume I in the series) . Light, minor cover wear. Pages tight, clean, unmarked. ;