Breastfeeding:

The American Academy of Pediatrics believes that breastfeeding is the optimal source of nutrition through the first year of life. It is recommended that you should exclusively breastfeed your baby for four to six months and then gradually add solid foods while continuing to breastfeed until your baby’s first birthday.more....

Bottlefeeding:

If you decided to bottlefeed your baby, get your pediatrician's guidance to select a formula based on your baby's needs. American Academy of Pediatrics does not recommend homemade baby formula since they tend to be deficient in vitamins and other important nutrients.more....

Sources:

Shelov, S. P., Hannemann, R. E. (2005). The Complete and Authoritative Guide Caring For Your Baby and Young Child. American Academy of Pediatrics