Variation And Similarity In Three Zones With-Different Type Of Substrate In Laguna Ojo De Liebre, B.C.S., Mexico. - J.C. Sarur-Zanatta; R. Millán-Núñez; C.A. Gutiérrez-Sigala; C.A. Small-Mattox-Sheahen (Ciencias Marinas, 1984)