APA

Hedvall G., . (1982). Pulmonary vascular resistance and left ventricular systolic time intervals in children with heart disease, with special reference to ventricular septal defects. Göteborg: .

Chicago

Hedvall Gunnel, . 1982. Pulmonary vascular resistance and left ventricular systolic time intervals in children with heart disease, with special reference to ventricular septal defects. Göteborg: .

Harvard

Hedvall G., . (1982). Pulmonary vascular resistance and left ventricular systolic time intervals in children with heart disease, with special reference to ventricular septal defects. Göteborg: .

MLA

Hedvall Gunnel, . Pulmonary vascular resistance and left ventricular systolic time intervals in children with heart disease, with special reference to ventricular septal defects. Göteborg: . 1982.