Cita APA (7a ed.)

(1968). Progress to Vantage: Teacher's resource pack. Summertown Publishing.

Cita Chicago Style (17a ed.)

Progress to Vantage: Teacher's Resource Pack. Summertown: Summertown Publishing, 1968.

Cita MLA (9a ed.)

Progress to Vantage: Teacher's Resource Pack. Summertown Publishing, 1968.