APA
ISMAIL S. A., . (1997). Vermicology : the biology of earthworms: (Donated by Mr. Ranganathan). HYDERABAD: ORIENT LONGMAN.
Chicago
ISMAIL SULTAN A, . 1997. Vermicology : the biology of earthworms: (Donated by Mr. Ranganathan). HYDERABAD: ORIENT LONGMAN.
Harvard
ISMAIL S. A., . (1997). Vermicology : the biology of earthworms: (Donated by Mr. Ranganathan). HYDERABAD: ORIENT LONGMAN.
MLA
ISMAIL SULTAN A, . Vermicology : the biology of earthworms: (Donated by Mr. Ranganathan). HYDERABAD: ORIENT LONGMAN. 1997.