Cita APA (7th ed.)
Ehrlich, E. Schaum's theory and problems of punctuation, capitalization, and spelling (2nd ed.). Tata McGraw-Hill 425 Eh33e2 2nd ed.
Cita Chicago (17th ed.)
Ehrlich, Eugene. Schaum's Theory and Problems of Punctuation, Capitalization, and Spelling. 2nd ed. New Delhi: Tata McGraw-Hill 425 Eh33e2 2nd ed.
Cita MLA (9th ed.)
Ehrlich, Eugene. Schaum's Theory and Problems of Punctuation, Capitalization, and Spelling. 2nd ed. Tata McGraw-Hill 425 Eh33e2 2nd ed.
Atenció: Aquestes cites poden no estar 100% correctes.