P. Wojtkowski

发表

P. Wojtkowski, 2019, Agroecology.

P. Wojtkowski, 2006 .

F. Cubbage, P. Wojtkowski, 1991, Agroforestry Systems.

P. Wojtkowski, 2019, Undoing the Damage.

P. Wojtkowski, 2017, Encyclopedia of GIS.

P. Wojtkowski, 2008, Science.

P. Wojtkowski, 2019, Agroecology.

P. Wojtkowski, 2019, Agroecology.

T. Mbabaliye, P. A. Wojtkowski, P. Wojtkowski, 1994, Experimental Agriculture.