Cita APA (7th ed.)

Hammer, D. P. (1976). The Information age: Its development, its impact. Scarecrow.

Cita Chicago (17th ed.)

Hammer, Donald P. The Information Age: Its Development, Its Impact. Metuchen, N. J: Scarecrow, 1976.

Cita MLA (9th ed.)

Hammer, Donald P. The Information Age: Its Development, Its Impact. Scarecrow, 1976.