Ideally, all of your sources would include everything that you need to reference correctly. Sometimes however this is not the case, and you should use the following examples if you ever experience this.
No author
Example: Veterinary Partner
(http://www.veterinarypartner.com/Content.plx?P=PRINT&A=3215)
In-text citations
If you are citing a source that does not have an author, the sponsorship (place published) acts as the author instead. So, using the article ‘Intervertebral Disk Disease’ found at Veterinary Partner as an example, you would reference one of the following, depending on the situation:
As described by one Veterinary Partner (2011), there are two types of disease that can afflict the intervertebral disk.
After surgery, it is a good idea to elicit a withdraw reflex, which makes the dog aware of the feet (Veterinary Partner, 2011).
Reference list
If you are using a source that does not include an author, nothing changes except you will not include an author name. So, using as an example the article ‘Intervertebral Disk Disease’ on the website VeterinaryPartner (as given above and under Reference List), you would reference this page with no author as follows:
Veterinary Partner (2011) Intervertebral Disk Disease. Available at http://www.veterinarypartner.com/Content.plx?P=PRINT&A=3215 (Accessed: 20 December 2013)
No date
If you wish to use a source that does not have a publication date, use the initials ‘n.d.’ where you would normally place the publication date. Using the same examples, you would reference the article as follows:
In-text citations
As described by the Veterinary Partner (n.d.), there are two types of disease that can afflict the intervertebral disk.
After surgery, it is a good idea to elicit a withdraw reflex, which makes the dog aware of the feet (Veterinary Partner, n.d.).
Reference List
Veterinary Partner (n.d) Intervertebral Disk Disease. Available at http://www.veterinarypartner.com/Content.plx?P=PRINT&A=3215 (Accessed: 20 December 2013)