Cita APA (7a ed.)

Lounsbury, J. H., & Johnston, J. H. (1988). Life in the three sixth grades. N.A.S.S.P.

Cita Chicago Style (17a ed.)

Lounsbury, John H., y J. Howard Johnston. Life in the Three Sixth Grades. Reston: N.A.S.S.P, 1988.

Cita MLA (9a ed.)

Lounsbury, John H., y J. Howard Johnston. Life in the Three Sixth Grades. N.A.S.S.P, 1988.