Guiyab, Riviera G. English communication arts 1 : conversational approach: textbook workbook for college freshmen / Riviera G. Guiyab. - Mandaluyong City : Books Atbp. Pub, 2006. - xxi, 242 p.: 22 cm. Includes references English ISBN: 978-971-0388-30-1 LC Class. No.: 410 G94e