Shepard, M. D. (1970). Reading Resources and Project LEER. Libraries and the Spanish-Speaking.
Citazione stile Chigago Style (17a edizione)Shepard, Marietta Daniels. Reading Resources and Project LEER. Libraries and the Spanish-Speaking. 1970.
Citatione MLA (9a ed.)Shepard, Marietta Daniels. Reading Resources and Project LEER. Libraries and the Spanish-Speaking. 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.