"learning by doing".

ग्रंथसूची विवरण
निगमित लेखक:	Philippines. Dept. of Agriculture. Agricultural Training Institute
स्वरूप:	पुस्तक
भाषा:	English
प्रकाशित:	Batangas, Philippines International Training Center on Pig Husbandry 2000.
विषय:	Livestock-Swine.