Pulle . W Mervyn
Science Education Scrices No. 4 Food Spoilage and Preservation in Sri Lanka Mervyn W . Pulle - Colombo National Science Council of Sri Lanka 1980 - 36 p.
641.4 / PUL
Science Education Scrices No. 4 Food Spoilage and Preservation in Sri Lanka Mervyn W . Pulle - Colombo National Science Council of Sri Lanka 1980 - 36 p.
641.4 / PUL