APA citiranje

HARRISON. E. R. (2012). FRANK MODERN CERTIFICATE BIOLOGY FOR MIDDLE SCHOOL WORKBOOK CLASS- 7 ( 2013- 14 ). FRANK BROS.

Chicago Style (17th ed.) Citation

HARRISON. E. R. FRANK MODERN CERTIFICATE BIOLOGY FOR MIDDLE SCHOOL WORKBOOK CLASS- 7 ( 2013- 14 ). FRANK BROS, 2012.

MLA citiranje

HARRISON. E. R. FRANK MODERN CERTIFICATE BIOLOGY FOR MIDDLE SCHOOL WORKBOOK CLASS- 7 ( 2013- 14 ). FRANK BROS, 2012.