Cita APA

Siemens Aktiengesellschaft. (1987). Internationale fernsprechstatistik: Stand 1. Januar 1986 = International telephone statistics : status : January 1, 1986 ... The Company.

Citación estilo Chicago

Siemens Aktiengesellschaft. Internationale Fernsprechstatistik: Stand 1. Januar 1986 = International Telephone Statistics : Status : January 1, 1986 ... Munchen [West Germany]: The Company, 1987.

Cita MLA

Siemens Aktiengesellschaft. Internationale Fernsprechstatistik: Stand 1. Januar 1986 = International Telephone Statistics : Status : January 1, 1986 ... The Company, 1987.

Warning: These citations may not always be 100% accurate.