Group Differences in urban fertility. A study derived from the national health survey.

Samankaltaisia teoksia

• Fertilization
  Tekijä: Rothschild, Nathaniel Mayer Victor
  Julkaistu: (1956)
• Field Studies on the effect of different forms of nitrogen fertilizers on the growth and yield of rice in Malaysia.
  Tekijä: Samy, Joseph Selvaraj
  Julkaistu: (1983)
• The Response of rice to fertilizer. Soil survey and fertility branch. Land and water developement Division.
  Tekijä: Doyle, J.J
  Julkaistu: (1966)
• Retail prices of fertilizer materials and mixed fertilizers.
  Tekijä: Vial, E.E
  Julkaistu: (1932)
• Fertilizer Marketing