Indiana. Dept. Of Public Instruction. (1963). Earth science curriculum guide for junior and senior high schools. [s.n.].
Cita Chicago (17th ed.)Indiana. Dept. Of Public Instruction. Earth Science Curriculum Guide for Junior and Senior High Schools. Indianapolis: [s.n.], 1963.
Cita MLA (9th ed.)Indiana. Dept. Of Public Instruction. Earth Science Curriculum Guide for Junior and Senior High Schools. [s.n.], 1963.
Atenció: Aquestes cites poden no estar 100% correctes.