O Building 690
O Building Engineering 690
O Construction News 690
O Professional Builder 690
O BSEE (Building Service and Environmental Engineer) 697
Journal:
A journal is like a magazine as it comes in issues. For example the Radio Times is issued weekly. Journals have more of a professional or research focus than magazines.
The following format should be used when referencing books:
Surname, Initials. (Year) Title of article. Title of journal. Vol no (issue no), pp. page nos [Online]. Available from: website address. [Accessed date viewed].
When you use free information always check for accuracy and bias.