APA

clarke a. c., . (1977). the telephones first century and beyond. New York: thoms y crowell.

Chicago

clarke arthur c, . 1977. the telephones first century and beyond. New York: thoms y crowell.

Harvard

clarke a. c., . (1977). the telephones first century and beyond. New York: thoms y crowell.

MLA

clarke arthur c, . the telephones first century and beyond. New York: thoms y crowell. 1977.