Cita APA (7th ed.)

LEDGARD HANRY. (1982). ELEMENTRY PASCAL. SCIENCE RESEARCH.

Cita Chicago (17th ed.)

LEDGARD HANRY. ELEMENTRY PASCAL. I B M: SCIENCE RESEARCH, 1982.

Cita MLA (9th ed.)

LEDGARD HANRY. ELEMENTRY PASCAL. SCIENCE RESEARCH, 1982.