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.
Most types of board are available in 9.5 or 12.5mm (3/8 or 1/2 inch) thicknesses, the thicker size is most often used and has increased rigidity. The usual sheet size is 0.9 or 1.2 m (3 or 4 ft) wide and length vary from 1.8 to 3.6 m (6 to 12 ft) long but other sizes may be available-often just cut down sheets.Most plasterboards come with a white paper face and the other side a grey, thicker paper face.he usual sheet size is 0.9 or 1.2 m (3 or 4 ft) wide and length vary from 1.8 to 3.6 m (6 to 12 ft) long but other sizes may be available-often just cut down sheets. Most plasterboards come with a white paper face and the other side a grey, thicker paper face.