Dyfyniad APA

Powell, J. M., Ware, H., & Williams, G. (1987). Recurrent ureteric obstruction in association with Henoch-Schönlein purpura. BMJ Group.

Dyfyniad Arddull Chicago

Powell, J. M., H. Ware, and G. Williams. Recurrent Ureteric Obstruction in Association With Henoch-Schönlein Purpura. BMJ Group, 1987.

Dyfyniad MLA

Powell, J. M., H. Ware, and G. Williams. Recurrent Ureteric Obstruction in Association With Henoch-Schönlein Purpura. BMJ Group, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.