Citazione Stile APA (7a Edizione)

Songco, E. A. (2002). Teaching strategies in the social sciences for elementary grades (Rev. ed.). Katha Pub.

Citazione stile Chigago Style (17a edizione)

Songco, Evelyn A. Teaching Strategies in the Social Sciences for Elementary Grades. Rev. ed. Quezon City: Katha Pub, 2002.

Citatione MLA (9a ed.)

Songco, Evelyn A. Teaching Strategies in the Social Sciences for Elementary Grades. Rev. ed. Katha Pub, 2002.