(2008). Annual study of population dynamics,reproductive cycle and dispersal of the Hypania invalida, in the Noor coast-the south of the Caspian sea. , 21(3), 33-38.

. "Annual study of population dynamics,reproductive cycle and dispersal of the Hypania invalida, in the Noor coast-the south of the Caspian sea". , 21, 3, 2008, 33-38.

(2008). 'Annual study of population dynamics,reproductive cycle and dispersal of the Hypania invalida, in the Noor coast-the south of the Caspian sea', , 21(3), pp. 33-38.

Annual study of population dynamics,reproductive cycle and dispersal of the Hypania invalida, in the Noor coast-the south of the Caspian sea. , 2008; 21(3): 33-38.