APA

(1987). Population, labour and migration in 19th and 20th century Germany. Leamington Spa [u.a.]: Berg [u.a.].

Chicago

1987. Population, labour and migration in 19th and 20th century Germany. Leamington Spa [u.a.]: Berg [u.a.].

Harvard

(1987). Population, labour and migration in 19th and 20th century Germany. Leamington Spa [u.a.]: Berg [u.a.].

MLA

Population, labour and migration in 19th and 20th century Germany. Leamington Spa [u.a.]: Berg [u.a.]. 1987.