Santiago, Jeffry A.  <br/><br/>
Adaptability trial of different varieties of lettuce (Lactuca sativa L.) under Ilocos Norte condition  
Jeffry A. Santiago 
 -  2004 
 - xiv, 26 leaves   28 cm.  
<br/><br/> Thesis (BS Agriculture-Horticulture) -- Mariano Marcos State University-College of Agriculture, Food & Sustainable Development, Batac City   
<br/><br/>Bibliography: leaf 37