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.
Tagboard Defined. Tagboard is a lightweight cardboard that comes in many sizes, styles and colors. It is thinner than true poster board and is made from virgin wood pulp. It is not acid-free, so it should not be used for projects that involve keepsakes or photos. It has a smooth surface and can be written on easily.