Cita APA (7a ed.)

Eckersley, C. (1967). General service english wall pictures: Pupils' workbook. Longman.

Cita Chicago Style (17a ed.)

Eckersley, C.E. General Service English Wall Pictures: Pupils' Workbook. London: Longman, 1967.

Cita MLA (9a ed.)

Eckersley, C.E. General Service English Wall Pictures: Pupils' Workbook. Longman, 1967.