Akron Summit County Public Library. Science and Technology Division. (1975). Science fair project index, 1960-1972. Scarecrow Press, Inc.
Cita Chicago (17th ed.)Akron Summit County Public Library. Science and Technology Division. Science Fair Project Index, 1960-1972. Metuchen, N.J: Scarecrow Press, Inc, 1975.
Cita MLA (9th ed.)Akron Summit County Public Library. Science and Technology Division. Science Fair Project Index, 1960-1972. Scarecrow Press, Inc, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.