APA

Borriss R., Porwollik S. & Schroeter R. (19970311). The 52 degrees-55 degrees segment of the Bacillus subtilis chromosome: a region devoted to purine uptake and metabolism, and containing the genes cotA, gabP and guaA and the pur gene cluster within a 34960 bp nucleotide sequence. : Microbiology (Reading, England).

Chicago

Borriss R, Porwollik S and Schroeter R. 19970311. The 52 degrees-55 degrees segment of the Bacillus subtilis chromosome: a region devoted to purine uptake and metabolism, and containing the genes cotA, gabP and guaA and the pur gene cluster within a 34960 bp nucleotide sequence. : Microbiology (Reading, England).

Harvard

Borriss R., Porwollik S. and Schroeter R. (19970311). The 52 degrees-55 degrees segment of the Bacillus subtilis chromosome: a region devoted to purine uptake and metabolism, and containing the genes cotA, gabP and guaA and the pur gene cluster within a 34960 bp nucleotide sequence. : Microbiology (Reading, England).

MLA

Borriss R, Porwollik S and Schroeter R. The 52 degrees-55 degrees segment of the Bacillus subtilis chromosome: a region devoted to purine uptake and metabolism, and containing the genes cotA, gabP and guaA and the pur gene cluster within a 34960 bp nucleotide sequence. : Microbiology (Reading, England). 19970311.