. (1974). Plant microfossils from Shahrud coaly sediments. (e26715). University College of Engineering, 28(0), e26715

. "Plant microfossils from Shahrud coaly sediments" .e26715 , University College of Engineering, 28, 0, 1974, e26715.

. (1974). 'Plant microfossils from Shahrud coaly sediments', University College of Engineering, 28(0), e26715.

, "Plant microfossils from Shahrud coaly sediments," University College of Engineering, 28 0 (1974): e26715,

. Plant microfossils from Shahrud coaly sediments. University College of Engineering. 1974;28(0):e26715 (In Persian).