Cita APA (7a ed.)
Eckersley, C. (1967). Essential English for Foreign Students: Book three. Foreign Languages Press.
Cita Chicago Style (17a ed.)
Eckersley, C.E. Essential English for Foreign Students: Book Three. Sofia: Foreign Languages Press, 1967.
Cita MLA (9a ed.)
Eckersley, C.E. Essential English for Foreign Students: Book Three. Foreign Languages Press, 1967.
Precaución: Estas citas no son 100% exactas.