Referencing; the methods behind my method

I used a number of methods to make up my own final one.
I based my method of planting radish seeds on this method from Garden Action
http://www.gardenaction.co.uk/fruit_veg_diary/fruit_veg_mini_project_june_1_radish.asp
However I had to modify it so that instead of sewing the seeds in a vegetable garden I planted them in pots. I also got a few facts about growing radishes which lead me to chose to grow them.

I used http://www.horticulturist.com/How%20to%20do%20things/watering.htm to make sure my directions for watering a plant were accurate- I know that sounds ridiculous but I had to find a more accurate was of saying pour water on the plants.

I also used the site: http://compost.css.cornell.edu/plantgrowth.html as a guide to create my own method but adjusted the variables mainly so that water became the independent variable.

After examining many more experiments it was mainly the 3 above I used to help me. Although I adjusted the above methods, mine is largely my own as I had to create the most appropriate method possible for my specific experiment.