Two or More Works by the Same Author in the Same Year: If you have two sources by the same author in the same year, use lower-case letters (a, b, c) with the year to order the entries in the reference list. Use the lower-case letters with the year in the in-text citation.
The next type of board is the longboard or malibu (mal). The main difference in design is that the nose of the longboard is rounded. Other than that there is no real difference, though shortboards tend to have three fins and longboards tend to have a single fin.
1) SURFBOARD SHAPES. Picking the right shape is the key when learning to surf. It is actually really simple - learners need floatation + stability - and the bigger the board, the more floatation and stability! The main shape that provides this is the minimal and longboard shapes. (Minimals are simply a shorter version of longboards).