APA

Frey M., Unger C. R., . (2016). Comparativ. Rural development in the twentieth century: international perspectives. Leipzig: Leipziger Univ.-Verl.

Chicago

Frey Marc, Unger Corinna R, . 2016. Comparativ. Rural development in the twentieth century: international perspectives. Leipzig: Leipziger Univ.-Verl.

Harvard

Frey M., Unger C. R., . (2016). Comparativ. Rural development in the twentieth century: international perspectives. Leipzig: Leipziger Univ.-Verl.

MLA

Frey Marc, Unger Corinna R, . Comparativ. Rural development in the twentieth century: international perspectives. Leipzig: Leipziger Univ.-Verl. 2016.