Trích dẫn APA

Guffey, M. E. (1998). Professional writer's electronic resource: Version 1.0 (version 1.0.). Cincinnati, OH: South-Western College.

Trích dẫn kiểu Chicago

Guffey, Mary Ellen. Professional Writer's Electronic Resource: Version 1.0. version 1.0. Cincinnati, OH: South-Western College, 1998.

Trích dẫn MLA

Guffey, Mary Ellen. Professional Writer's Electronic Resource: Version 1.0. version 1.0. Cincinnati, OH: South-Western College, 1998.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.