Petavel , J. W. (1921). Non co- operation and the bread problem : the first lecture of a series delivers to Calcutta: Calcutta University. Calcutta univ. pr.
Dyfyniad Arddull ChicagoPetavel , J W. Non Co- Operation and the Bread Problem : The First Lecture of a Series Delivers to Calcutta: Calcutta University. Calcutta: Calcutta univ. pr, 1921.
Dyfyniad MLAPetavel , J W. Non Co- Operation and the Bread Problem : The First Lecture of a Series Delivers to Calcutta: Calcutta University. Calcutta univ. pr, 1921.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.