APA Style
      THEORETICAL AND APPLIED GENETIC  Volume.81   Number.2      Feb    1991. (1991).
    Germany:
  .
  
Chicago Style
      THEORETICAL AND APPLIED GENETIC  Volume.81   Number.2      Feb    1991.
    Vol.81   No.2           1991.
    Germany:
  ,
  1991.
  Hard Copy.
  
MLA Style
      THEORETICAL AND APPLIED GENETIC  Volume.81   Number.2      Feb    1991.
    Vol.81   No.2           1991.
    Germany:
  ,
  1991.
  Hard Copy.
  
Turabian Style
      THEORETICAL AND APPLIED GENETIC  Volume.81   Number.2      Feb    1991.
    Germany:
  ,
  1991.
  Hard Copy.